Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2017-8824     Mohamed Ghannam discovered that the DCCP implementation     did not correctly manage resources when a socket is     disconnected and reconnected, potentially leading to a     use-after-free. A local user could use this for denial     of service (crash or data corruption) or possibly for     privilege escalation. On systems that do not already     have the dccp module loaded, this can be mitigated by     disabling it:echo >> /etc/modprobe.d/disable-dccp.conf     install dccp false

  - CVE-2017-16538     Andrey Konovalov reported that the dvb-usb-lmedm04 media     driver did not correctly handle some error conditions     during initialisation. A physically present user with a     specially designed USB device can use this to cause a     denial of service (crash).

  - CVE-2017-16644     Andrey Konovalov reported that the hdpvr media driver     did not correctly handle some error conditions during     initialisation. A physically present user with a     specially designed USB device can use this to cause a     denial of service (crash).

  - CVE-2017-16995     Jann Horn discovered that the Extended BPF verifier did     not correctly model the behaviour of 32-bit load     instructions. A local user can use this for privilege     escalation.

  - CVE-2017-17448     Kevin Cernekee discovered that the netfilter subsystem     allowed users with the CAP_NET_ADMIN capability in any     user namespace, not just the root namespace, to enable     and disable connection tracking helpers. This could lead     to denial of service, violation of network security     policy, or have other impact.

  - CVE-2017-17449     Kevin Cernekee discovered that the netlink subsystem     allowed users with the CAP_NET_ADMIN capability in any     user namespace to monitor netlink traffic in all net     namespaces, not just those owned by that user namespace.
    This could lead to exposure of sensitive information.

  - CVE-2017-17450     Kevin Cernekee discovered that the xt_osf module allowed     users with the CAP_NET_ADMIN capability in any user     namespace to modify the global OS fingerprint list.

  - CVE-2017-17558     Andrey Konovalov reported that that USB core did not     correctly handle some error conditions during     initialisation. A physically present user with a     specially designed USB device can use this to cause a     denial of service (crash or memory corruption), or     possibly for privilege escalation.

  - CVE-2017-17712     Mohamed Ghannam discovered a race condition in the IPv4     raw socket implementation. A local user could use this     to obtain sensitive information from the kernel.

  - CVE-2017-17741     Dmitry Vyukov reported that the KVM implementation for     x86 would over-read data from memory when emulating an     MMIO write if the kvm_mmio tracepoint was enabled. A     guest virtual machine might be able to use this to cause     a denial of service (crash).

  - CVE-2017-17805     It was discovered that some implementations of the     Salsa20 block cipher did not correctly handle     zero-length input. A local user could use this to cause     a denial of service (crash) or possibly have other     security impact.

  - CVE-2017-17806     It was discovered that the HMAC implementation could be     used with an underlying hash algorithm that requires a     key, which was not intended. A local user could use this     to cause a denial of service (crash or memory     corruption), or possibly for privilege escalation.

  - CVE-2017-17807     Eric Biggers discovered that the KEYS subsystem lacked a     check for write permission when adding keys to a     process's default keyring. A local user could use this     to cause a denial of service or to obtain sensitive     information.

  - CVE-2017-17862     Alexei Starovoitov discovered that the Extended BPF     verifier ignored unreachable code, even though it would     still be processed by JIT compilers. This could possibly     be used by local users for denial of service. It also     increases the severity of bugs in determining     unreachable code.

  - CVE-2017-17863     Jann Horn discovered that the Extended BPF verifier did     not correctly model pointer arithmetic on the stack     frame pointer. A local user can use this for privilege     escalation.

  - CVE-2017-17864     Jann Horn discovered that the Extended BPF verifier     could fail to detect pointer leaks from conditional     code. A local user could use this to obtain sensitive     information in order to exploit other vulnerabilities.

  - CVE-2017-1000407     Andrew Honig reported that the KVM implementation for     Intel processors allowed direct access to host I/O port     0x80, which is not generally safe. On some systems this     allows a guest VM to cause a denial of service (crash)     of the host.

  - CVE-2017-1000410     Ben Seri reported that the Bluetooth subsystem did not     correctly handle short EFS information elements in L2CAP     messages. An attacker able to communicate over Bluetooth     could use this to obtain sensitive information from the     kernel.

The various problems in the Extended BPF verifier can be mitigated by disabling use of Extended BPF by unprivileged users:sysctl kernel.unprivileged_bpf_disabled=1

Debian disables unprivileged user namespaces by default, but if they are enabled (via the kernel.unprivileged_userns_clone sysctl) then CVE-2017-17448 can be exploited by any local user.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0654 advisory.

    The kernel-alt packages provide the Linux kernel version 4.x.

    The following packages have been upgraded to a later upstream version: kernel-alt (4.14.0). (BZ#1492717)

    Security Fix(es):

    * An industry-wide issue was found in the way many modern microprocessor designs have implemented     speculative execution of instructions (a commonly used performance optimization). There are three primary     variants of the issue which differ in the way the speculative execution can be exploited.

    Variant CVE-2017-5715 triggers the speculative execution by utilizing branch target injection. It relies     on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact     that memory accesses may cause allocation into the microprocessor's data cache even for speculatively     executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use     this flaw to cross the syscall and guest/host boundaries and read privileged memory by conducting targeted     cache side-channel attacks. (CVE-2017-5715, Important, ARM)

    Variant CVE-2017-5753 triggers the speculative execution by performing a bounds-check bypass. It relies on     the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that     memory accesses may cause allocation into the microprocessor's data cache even for speculatively executed     instructions that never actually commit (retire). As a result, an unprivileged attacker could use this     flaw to cross the syscall boundary and read privileged memory by conducting targeted cache side-channel     attacks. (CVE-2017-5753, Important, ARM)

    Variant CVE-2017-5754 relies on the fact that, on impacted microprocessors, during speculative execution     of instruction permission faults, exception generation triggered by a faulting access is suppressed until     the retirement of the whole instruction block. In a combination with the fact that memory accesses may     populate the cache even when the block is being dropped and never committed (executed), an unprivileged     local attacker could use this flaw to read privileged (kernel space) memory by conducting targeted cache     side-channel attacks. (CVE-2017-5754, Important, ARM)

    * kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190, Moderate)

    * kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129, Moderate)

    * kernel: Incorrect updates of uninstantiated keys crash the kernel (CVE-2017-15299, Moderate)

    * kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access     to systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

    * kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe     systemwide activity (CVE-2017-17449, Moderate)

    * kernel: Arbitrary stack overwrite causing oops via crafted signal frame (CVE-2017-1000255, Moderate)

    * kernel: Stack information leak in the EFS element (CVE-2017-1000410, Moderate)

    * kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004, Moderate)

    * kernel: Buffer overflow in mp_override_legacy_irq() (CVE-2017-11473, Low)

    * kernel: Integer overflow in futex.c:futux_requeue can lead to denial of service or unspecified impact     (CVE-2018-6927, Low)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    Red Hat would like to thank Google Project Zero for reporting CVE-2017-5715, CVE-2017-5753, and     CVE-2017-5754; Vitaly Mayatskih for reporting CVE-2017-12190; Kirill Tkhai for reporting CVE-2017-15129;
    Michael Ellerman, Gustavo Romero, Breno Leitao, Paul Mackerras, and Cyril Bur for reporting     CVE-2017-1000255; and Armis Labs for reporting CVE-2017-1000410.

    Additional Changes:

    See the Red Hat Enterprise Linux 7.5 Release Notes linked from References.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K01043241 advisory.

  - net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN     capability for new, get, and del operations, which allows local users to bypass intended access     restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.
    (CVE-2017-17448)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :

  - It was discovered that nfnl_cthelper_list structure was     accessible to any user with CAP_NET_ADMIN capability in     a network namespace. An unprivileged local user could     exploit that to affect netfilter conntrack helpers on     the host.

  - It was discovered that a nlmon link inside a child     network namespace was not restricted to that namespace.
    An unprivileged local user could exploit that to     monitor system-wide netlink activity.

  - It was discovered that xt_osf_fingers data structure     was accessible from any network namespace. This allowed     unprivileged local users to bypass intended access     restrictions and modify the system-wide OS fingerprint     list used by specific iptables rules.

  - The KEYS subsystem omitted an access-control check when     writing a key to the default keyring of the current     task, allowing a local user to bypass security checks     for the keyring. This compromised the validity of the     keyring for those who relied on it.

  - If 'dccp_ipv6' module was loaded on the host, a local     unprivileged user could trigger a kernel crash in     dccp_write_xmit() or inet_csk_get_port() using a     specially crafted sequence of system calls.

Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the linux package has been released.

The 4.14.6 update contains various fixes across the tree.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The usbhid_parse function in     drivers/hid/usbhid/hid-core.c in the Linux kernel,     before 4.13.8, allows local users to cause a denial of     service (out-of-bounds read and system crash) or     possibly have unspecified other impact via a crafted     USB device.(CVE-2017-16533)

  - The cdc_parse_cdc_header() function in     'drivers/usb/core/message.c' in the Linux kernel,     before 4.13.6, allows local users to cause a denial of     service (out-of-bounds read and system crash) or     possibly have unspecified other impact via a crafted     USB device. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely.(CVE-2017-16534)

  - The usb_get_bos_descriptor function in     drivers/usb/core/config.c in the Linux kernel can allow     a local users to cause a denial of service     (out-of-bounds read and system crash) or possibly have     unspecified other impact via a crafted USB     device.(CVE-2017-16535)

  - The cx231xx_usb_probe function in     drivers/media/usb/cx231xx/cx231xx-cards.c in the Linux     kernel through 4.13.11 allows local users to cause a     denial of service (NULL pointer dereference and system     crash) or possibly have unspecified other impact via a     crafted USB device.(CVE-2017-16536)

  - The imon_probe function in drivers/media/rc/imon.c in     the Linux kernel through 4.13.11 allows local users to     cause a denial of service (NULL pointer dereference and     system crash) or possibly have unspecified other impact     via a crafted USB device.(CVE-2017-16537)

  - The drivers/media/usb/dvb-usb-v2/lmedm04.c in the Linux     kernel, through 4.13.11, allows local users to cause a     denial of service (general protection fault and system     crash) or possibly have unspecified other impact via a     crafted USB device, related to a missing warm-start     check and incorrect attach timing     (dm04_lme2510_frontend_attach versus     dm04_lme2510_tuner).(CVE-2017-16538)

  - The parse_hid_report_descriptor function in     drivers/input/tablet/gtco.c in the Linux kernel before     4.13.11 allows local users to cause a denial of service     (out-of-bounds read and system crash) or possibly have     unspecified other impact via a crafted USB     device.(CVE-2017-16643)

  - The hdpvr_probe function in     drivers/media/usb/hdpvr/hdpvr-core.c in the Linux     kernel through 4.13.11 allows local users to cause a     denial of service (improper error handling and system     crash) or possibly have unspecified other impact via a     crafted USB device.(CVE-2017-16644)

  - The ims_pcu_get_cdc_union_desc function in     drivers/input/misc/ims-pcu.c in the Linux kernel,     through 4.13.11, allows local users to cause a denial     of service (ims_pcu_parse_cdc_data out-of-bounds read     and system crash) or possibly have unspecified other     impact via a crafted USB device.(CVE-2017-16645)

  - The usbnet_generic_cdc_bind function in     drivers/net/usb/cdc_ether.c in the Linux kernel through     4.13.11 allows local users to cause a denial of service     (divide-by-zero error and system crash) or possibly     have unspecified other impact via a crafted USB     device.(CVE-2017-16649)

  - The qmi_wwan_bind function in     drivers/net/usb/qmi_wwan.c in the Linux kernel through     4.13.11 allows local users to cause a denial of service     (divide-by-zero error and system crash) or possibly     have unspecified other impact via a crafted USB     device.(CVE-2017-16650)

  - The Linux kernel is vulerable to a use-after-free flaw     when Transformation User configuration     interface(CONFIG_XFRM_USER) compile-time configuration     were enabled. This vulnerability occurs while closing a     xfrm netlink socket in xfrm_dump_policy_done. A     user/process could abuse this flaw to potentially     escalate their privileges on a system.(CVE-2017-16939)

  - The net/netfilter/nfnetlink_cthelper.c function in the     Linux kernel through 4.14.4 does not require the     CAP_NET_ADMIN capability for new, get, and del     operations. This allows local users to bypass intended     access restrictions because the nfnl_cthelper_list data     structure is shared across all net     namespaces.(CVE-2017-17448)

  - The __netlink_deliver_tap_skb function in     net/netlink/af_netlink.c in the Linux kernel, through     4.14.4, does not restrict observations of Netlink     messages to a single net namespace, when CONFIG_NLMON     is enabled. This allows local users to obtain sensitive     information by leveraging the CAP_NET_ADMIN capability     to sniff an nlmon interface for all Netlink activity on     the system.(CVE-2017-17449)

  - net/netfilter/xt_osf.c in the Linux kernel through     4.14.4 does not require the CAP_NET_ADMIN capability     for add_callback and remove_callback operations. This     allows local users to bypass intended access     restrictions because the xt_osf_fingers data structure     is shared across all network     namespaces.(CVE-2017-17450)

  - The usb_destroy_configuration() function, in     'drivers/usb/core/config.c' in the USB core subsystem,     in the Linux kernel through 4.14.5 does not consider     the maximum number of configurations and interfaces     before attempting to release resources. This allows     local users to cause a denial of service, due to     out-of-bounds write access, or possibly have     unspecified other impact via a crafted USB device. Due     to the nature of the flaw, privilege escalation cannot     be fully ruled out, although we believe it is     unlikely.(CVE-2017-17558)

  - The Salsa20 encryption algorithm in the Linux kernel,     before 4.14.8, does not correctly handle zero-length     inputs. This allows a local attacker the ability to use     the AF_ALG-based skcipher interface to cause a denial     of service (uninitialized-memory free and kernel crash)     or have an unspecified other impact by executing a     crafted sequence of system calls that use the     blkcipher_walk API. Both the generic implementation     (crypto/salsa20_generic.c) and x86 implementation     (arch/x86/crypto/salsa20_glue.c) of Salsa20 are     vulnerable.(CVE-2017-17805)

  - The HMAC implementation (crypto/hmac.c) in the Linux     kernel, before 4.14.8, does not validate that the     underlying cryptographic hash algorithm is unkeyed.
    This allows a local attacker, able to use the     AF_ALG-based hash interface     (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash     algorithm (CONFIG_CRYPTO_SHA3), to cause a kernel stack     buffer overflow by executing a crafted sequence of     system calls that encounter a missing SHA-3     initialization.(CVE-2017-17806)

  - The KEYS subsystem in the Linux kernel omitted an     access-control check when writing a key to the current     task's default keyring, allowing a local user to bypass     security checks to the keyring. This compromises the     validity of the keyring for those who rely on     it.(CVE-2017-17807)

  - A flaw was found in the Linux kernel's implementation     of i8042 serial ports. An attacker could cause a kernel     panic if they are able to add and remove devices as the     module is loaded.(CVE-2017-18079)

  - The Linux kernel, before version 4.14.3, is vulnerable     to a denial of service in     drivers/md/dm.c:dm_get_from_kobject() which can be     caused by local users leveraging a race condition with
    __dm_destroy() during creation and removal of DM     devices. Only privileged local users (with     CAP_SYS_ADMIN capability) can directly perform the     ioctl operations for dm device creation and removal and     this would typically be outside the direct control of     the unprivileged attacker.(CVE-2017-18203)

  - The madvise_willneed function in the Linux kernel     allows local users to cause a denial of service     (infinite loop) by triggering use of MADVISE_WILLNEED     for a DAX mapping.(CVE-2017-18208)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* hw: cpu: speculative execution permission faults handling (CVE-2017-5754, Important, KVM for Power)

* kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824, Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register (CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation (CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client (CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265, Moderate)

* kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity (CVE-2017-17449, Moderate)

* kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service (CVE-2017-18203, Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ (CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407, Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410, Moderate)

* kernel: Kernel address information leak in drivers/acpi/ sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass (CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service (CVE-2018-1000004, Moderate)

* kernel: multiple Low security impact security issues (CVE-2016-3672, CVE-2017-14140, CVE-2017-15116, CVE-2017-15127, CVE-2018-6927, Low)

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Google Project Zero for reporting CVE-2017-5754; Mohamed Ghannam for reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for reporting CVE-2017-15129; Jan H. Schonherr (Amazon) for reporting CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4109 advisory.

    - media: imon: Fix null-ptr-deref in imon_probe (Arvind Yadav)  [Orabug: 27208380]  {CVE-2017-16537}
    - Input: gtco - fix potential out-of-bound access (Dmitry Torokhov)  [Orabug: 27215090]  {CVE-2017-16643}
    - usb: usbtest: fix NULL pointer dereference (Alan Stern)  [Orabug: 27602324]  {CVE-2017-16532}
    - netfilter: ebtables: CONFIG_COMPAT: dont trust userland offsets (Florian Westphal)  [Orabug: 27774015]     {CVE-2018-1068}
    - ext4: add validity checks for bitmap block numbers (Theodore Tso)  [Orabug: 27854376]  {CVE-2018-1093}     {CVE-2018-1093}
    - USB: core: prevent malicious bNumInterfaces overflow (Alan Stern)  [Orabug: 27898074]  {CVE-2017-17558}
    - netfilter: nfnetlink_cthelper: Add missing permission checks (Kevin Cernekee)  [Orabug: 27898167]     {CVE-2017-17448}
    - KEYS: dont let add_key() update an uninstantiated key (David Howells)  [Orabug: 27913332]     {CVE-2017-15299}
    - RDS: Heap OOB write in rds_message_alloc_sgs() (Mohamed Ghannam)  [Orabug: 27934073]  {CVE-2018-5332}
    - x86/entry/64: Dont use IST entry for #BP stack (Andy Lutomirski)   {CVE-2018-8897}
    - perf/hwbp: Simplify the perf-hwbp code, fix documentation (Linus Torvalds)  [Orabug: 27947608]     {CVE-2018-100199}
    - ALSA: usb-audio: Kill stray URB at exiting (Takashi Iwai)  [Orabug: 27148281]  {CVE-2017-16527}
    - HID: usbhid: fix out-of-bounds bug (Jaejoong Kim)  [Orabug: 27207929]  {CVE-2017-16533}
    - [media] cx231xx-cards: fix NULL-deref on missing association descriptor (Johan Hovold)  [Orabug:
    27208072]  {CVE-2017-16536}
    - net: cdc_ether: fix divide by 0 on bad descriptors (Bjorn Mork)  [Orabug: 27215201]  {CVE-2017-16649}
    - Bluetooth: bnep: bnep_add_connection() should verify that its dealing with l2cap socket (Al Viro)     [Orabug: 27344793]  {CVE-2017-15868}
    - Bluetooth: hidp: verify l2cap sockets (David Herrmann)  [Orabug: 27344793]  {CVE-2017-15868}
    - ALSA: pcm: prevent UAF in snd_pcm_info (Robb Glasser)  [Orabug: 27344843]  {CVE-2017-0861}     {CVE-2017-0861}
    - ptrace: use fsuid, fsgid, effective creds for fs access checks (Jann Horn)  [Orabug: 27364691]     {CVE-2017-14140}
    - sctp: do not peel off an assoc from one netns to another one (Xin Long)  [Orabug: 27387001]     {CVE-2017-15115}
    - Revert 'x86/spec_ctrl: Add 'nolfence' knob to disable fallback for spectre_v2 mitigation' (Ankur Arora)     [Orabug: 27601787]  {CVE-2017-5715}
    - Revert 'x86/spec: Add 'lfence_enabled' in sysfs' (Ankur Arora)  [Orabug: 27601787]  {CVE-2017-5715}
    - Revert 'x86/mitigation/spectre_v2: Add reporting of 'lfence'' (Ankur Arora)  [Orabug: 27601787]     {CVE-2017-5715}
    - x86/mitigation/spectre_v2: Add reporting of 'lfence' (Konrad Rzeszutek Wilk)   {CVE-2017-5715}
    - x86/spec: Add 'lfence_enabled' in sysfs (Konrad Rzeszutek Wilk)   {CVE-2017-5715}
    - x86/spec_ctrl: Add 'nolfence' knob to disable fallback for spectre_v2 mitigation (Konrad Rzeszutek Wilk)     {CVE-2017-5715}
    - x86/spectre: bring spec_ctrl management logic closer to UEK4 (Ankur Arora)  [Orabug: 27516512]     {CVE-2017-5715}
    - x86/cpufeatures: Clean up Spectre v2 related CPUID flags (David Woodhouse)  [Orabug: 27516357]     {CVE-2017-5715}
    - x86/spectre_v2: Remove 0xc2 from spectre_bad_microcodes (Darren Kenny)  [Orabug: 27516419]     {CVE-2017-5715}
    - x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes (David Woodhouse)  [Orabug:
    27516419]  {CVE-2017-5715}
    - x86/spectre: expose 'stibp' (Konrad Rzeszutek Wilk)  [Orabug: 27516419]  {CVE-2017-5715}
    - x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support (David Woodhouse)  [Orabug:
    27516379]  {CVE-2017-5715}
    - x86/speculation: Use Indirect Branch Prediction Barrier in context switch (Tim Chen)  [Orabug: 27516379]     {CVE-2017-5715}
    - x86/spectre: fix spectre_v1 mitigation indicators (Ankur Arora)  [Orabug: 27509932]  {CVE-2017-5715}
    - x86/ia32/syscall: Clear extended registers %r8-%r15 (Ankur Arora)  [Orabug: 27452028]  {CVE-2017-5715}
    - x86/ia32/syscall: Save full stack frame throughout the entry code (Ankur Arora)  [Orabug: 27452028]     {CVE-2017-5715}
    - x86/ia32/syscall: cleanup trailing whitespace (Ankur Arora)  [Orabug: 27452028]  {CVE-2017-5715}
    - x86/syscall: Clear callee saved registers (%r12-%r15, %rbp, %rbx) (Ankur Arora)  [Orabug: 27452028]     {CVE-2017-5715}
    - x86/syscall: Save callee saved registers on syscall entrance (Ankur Arora)  [Orabug: 27452028]     {CVE-2017-5715}
    - gre: fix a possible skb leak (Eric Dumazet)  [Orabug: 26403972]  {CVE-2017-9074}
    - ipv6: Fix leak in ipv6_gso_segment(). (David S. Miller)  [Orabug: 26403972]  {CVE-2017-9074}
    - ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() (Ben Hutchings)  [Orabug: 26403972]     {CVE-2017-9074}
    - ipv6: Check ip6_find_1stfragopt() return value properly. (David S. Miller)  [Orabug: 26403972]     {CVE-2017-9074}
    - ipv6: Prevent overrun when parsing v6 header options (Craig Gallek)  [Orabug: 26403972]  {CVE-2017-9074}
    - tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0 (Wei Wang)  [Orabug: 26813390]  {CVE-2017-14106}
    - rxrpc: Fix several cases where a padded len isnt checked in ticket decode (David Howells)  [Orabug:
    26880517]  {CVE-2017-7482} {CVE-2017-7482}
    - USB: serial: console: fix use-after-free after failed setup (Johan Hovold)  [Orabug: 27206837]     {CVE-2017-16525}
    - uwb: properly check kthread_run return value (Andrey Konovalov)  [Orabug: 27206897]  {CVE-2017-16526}
    - ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor (Takashi Iwai)  [Orabug:
    27206928]  {CVE-2017-16529}
    - USB: fix out-of-bounds in usb_set_configuration (Greg Kroah-Hartman)  [Orabug: 27207240]     {CVE-2017-16531}
    - USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor() (Alan Stern)  [Orabug: 27207983]     {CVE-2017-16535}
    - dccp: CVE-2017-8824: use-after-free in DCCP code (Mohamed Ghannam)  [Orabug: 27290301]  {CVE-2017-8824}
    - x86: Add another set of MSR accessor functions (Borislav Petkov)  [Orabug: 27444923]  {CVE-2017-5753}
    - userns: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - udf: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - fs: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - qla2xxx: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - p54: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - carl9170: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - uvcvideo: prevent speculative execution (Elena Reshetova)  [Orabug: 27444923]  {CVE-2017-5753}
    - locking/barriers: introduce new observable speculation barrier (Elena Reshetova)  [Orabug: 27444923]     {CVE-2017-5753}
    - x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature (Elena Reshetova)  [Orabug: 27444923]     {CVE-2017-5753}
    - x86/cpu/AMD: Make the LFENCE instruction serialized (Elena Reshetova)  [Orabug: 27444923]     {CVE-2017-5753}
    - x86/rsb: add comment specifying why we skip STUFF_RSB (Ankur Arora)  [Orabug: 27451658]  {CVE-2017-5715}
    - x86/rsb: make STUFF_RSB jmp labels more robust (Ankur Arora)  [Orabug: 27451658]  {CVE-2017-5715}
    - x86/spec: Also print IBRS if IBPB is disabled. (Konrad Rzeszutek Wilk)   {CVE-2017-5715}
    - x86/spectre: Drop the warning about ibrs being obsolete. (Konrad Rzeszutek Wilk)   {CVE-2017-5715}
    - Add set_ibrs_disabled and set_ibpb_disabled (Konrad Rzeszutek Wilk)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/spec: Dont print the Missing arguments for option spectre_v2 (Konrad Rzeszutek Wilk)  [Orabug:
    27376697]  {CVE-2017-5715}
    - x86/boot: Add early cmdline parsing for options with arguments (Tom Lendacky)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86: Add command-line options 'spectre_v2' and 'nospectre_v2' (Kanth Ghatraju)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86: Fix kABI build breakage (Konrad Rzeszutek Wilk)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread (Konrad Rzeszutek Wilk)  [Orabug:
    27376697]  {CVE-2017-5715}
    - x86: Use PRED_CMD MSR when ibpb is enabled (Konrad Rzeszutek Wilk)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/mm: Set IBPB upon context switch (Brian Maly)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86: Display correct settings for the SPECTRE_V[12] bug (Kanth Ghatraju)  [Orabug: 27376697]     {CVE-2017-5715} {CVE-2017-5753}
    - x86/cpu: Implement CPU vulnerabilites sysfs functions (Thomas Gleixner)  [Orabug: 27376697]     {CVE-2017-5715} {CVE-2017-5753}
    - x86/IBRS/IBPB: Set sysctl_ibrs/ibpb_enabled properly (Boris Ostrovsky)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/spec_ctrl: Disable if running as Xen PV guest (Konrad Rzeszutek Wilk)  [Orabug: 27376697]     {CVE-2017-5715}
    - sysfs/cpu: Add vulnerability folder (Thomas Gleixner)  [Orabug: 27376697]  {CVE-2017-5715}     {CVE-2017-5754}
    - x86, cpu: Expand cpufeature facility to include cpu bugs (Borislav Petkov)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/cpufeatures: Add X86_BUG_SPECTRE_V[12] (Kanth Ghatraju)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/cpufeatures: Add X86_BUG_CPU_MELTDOWN (Kanth Ghatraju)  [Orabug: 27376697]  {CVE-2017-5754}
    - x86/entry: STUFF_RSB only after switching to kernel CR3 (Ankur Arora)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform (Tim Chen)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/IBRS: Make sure we restore MSR_IA32_SPEC_CTRL to a valid value (Boris Ostrovsky)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86: Use IBRS for firmware update path (David Woodhouse)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/microcode: Recheck IBRS features on microcode reload (Tim Chen)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/idle: Disable IBRS entering idle and enable it on wakeup (Tim Chen)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature (Tim Chen)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/enter: Use IBRS on syscall and interrupts (Tim Chen)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/enter: MACROS to set/clear IBRS (Tim Chen)  [Orabug: 27376697]  {CVE-2017-5715}
    - x86/feature: Detect the x86 IBRS feature to control Speculation (Tim Chen)  [Orabug: 27376697]     {CVE-2017-5715}
    - x86/pti/efi: broken conversion from efi to kernel page table (Pavel Tatashin)  [Orabug: 27333764]     {CVE-2017-5754}
    - PTI: unbreak EFI old_memmap (Jiri Kosina)  [Orabug: 27333764] [Orabug: 27333760]  {CVE-2017-5754}     {CVE-2017-5754}
    - kaiser: Set _PAGE_NX only if supported (Lepton Wu)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: rename X86_FEATURE_KAISER to X86_FEATURE_PTI (Mike Kravetz)  [Orabug: 27333764]  {CVE-2017-5754}
    - KPTI: Rename to PAGE_TABLE_ISOLATION (Kees Cook)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/kaiser: Check boottime cmdline params (Mike Kravetz)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: x86: Fix NMI handling (Jiri Kosina)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: move paravirt clock vsyscall mapping out of kaiser_init (Mike Kravetz)  [Orabug: 27333764]     {CVE-2017-5754}
    - kaiser: disable if xen PARAVIRT (Mike Kravetz)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/kaiser: Reenable PARAVIRT (Borislav Petkov)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: kaiser_flush_tlb_on_return_to_user() check PCID (Hugh Dickins)  [Orabug: 27333764]     {CVE-2017-5754}
    - kaiser: asm/tlbflush.h handle noPGE at lower level (Hugh Dickins)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush (Hugh Dickins)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling (Borislav Petkov)  [Orabug: 27333764]     {CVE-2017-5754}
    - kaiser: add 'nokaiser' boot option, using ALTERNATIVE (Hugh Dickins)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/alternatives: add asm ALTERNATIVE macro (Mike Kravetz)  [Orabug: 27333764]  {CVE-2017-5754}
    - kaiser: alloc_ldt_struct() use get_zeroed_page() (Hugh Dickins)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86: kvmclock: Disable use from vDSO if KPTI is enabled (Ben Hutchings)  [Orabug: 27333764]     {CVE-2017-5754}
    - kaiser: Fix build with CONFIG_FUNCTION_GRAPH_TRACER (Kees Cook)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm/kaiser: re-enable vsyscalls (Andrea Arcangeli)  [Orabug: 27333764]  {CVE-2017-5754}
    - KAISER: Kernel Address Isolation (Richard Fellner)  [Orabug: 27333764]  {CVE-2017-5754}
    - kprobes: Prohibit probing on .entry.text code (Masami Hiramatsu)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm/64: Fix reboot interaction with CR4.PCIDE (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Enable CR4.PCIDE on supported systems (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Add the 'nopcid' boot option to turn off PCID (Andy Lutomirski)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/mm: Disable PCID on 32-bit kernels (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code (Andy Lutomirski)     [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Fix flush_tlb_page() on Xen (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Disable preemption during CR3 read+write (Sebastian Andrzej Siewior)  [Orabug: 27333764]     {CVE-2017-5754}
    - sched/core: Idle_task_exit() shouldnt use switch_mm_irqs_off() (Andy Lutomirski)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/mm, sched/core: Turn off IRQs in switch_mm() (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm, sched/core: Uninline switch_mm() (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Build arch/x86/mm/tlb.c even on !SMP (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - sched/core: Add switch_mm_irqs_off() and use it in the scheduler (Andy Lutomirski)  [Orabug: 27333764]     {CVE-2017-5754}
    - mm/mmu_context, sched/core: Fix mmu_context.h assumption (Ingo Molnar)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/mm: If INVPCID is available, use it to flush global mappings (Andy Lutomirski)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID (Andy Lutomirski)  [Orabug: 27333764]     {CVE-2017-5754}
    - x86/mm: Fix INVPCID asm constraint (Borislav Petkov)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/mm: Add INVPCID helpers (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86: Clean up cr4 manipulation (Andy Lutomirski)  [Orabug: 27333764]  {CVE-2017-5754}
    - x86/paravirt: Dont patch flush_tlb_single (Thomas Gleixner)  [Orabug: 27333764]  {CVE-2017-5754}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - An out-of-bounds memory access flaw was found in the     Linux kernel's system call auditing implementation. On     a system with existing audit rules defined, a local,     unprivileged user could use this flaw to leak kernel     memory to user space or, potentially, crash the     system.(CVE-2014-3917i1/4%0

  - The net/netfilter/nfnetlink_cthelper.c function in the     Linux kernel through 4.14.4 does not require the     CAP_NET_ADMIN capability for new, get, and del     operations. This allows local users to bypass intended     access restrictions because the nfnl_cthelper_list data     structure is shared across all net     namespaces.(CVE-2017-17448i1/4%0

  - A race condition flaw was found between the chown and     execve system calls. When changing the owner of a     setuid user binary to root, the race condition could     momentarily make the binary setuid root. A local,     unprivileged user could potentially use this flaw to     escalate their privileges on the     system.(CVE-2015-3339i1/4%0

  - Keberos 5 tickets being decoded when using the RXRPC     keys incorrectly assumes the size of a field. This     could lead to the size-remaining variable wrapping and     the data pointer going over the end of the buffer. This     could possibly lead to memory corruption and possible     privilege escalation.(CVE-2017-7482i1/4%0

  - The nfs_can_extend_write function in fs/nfs/write.c in     the Linux kernel before 3.13.3 relies on a write     delegation to extend a write operation without a     certain up-to-date verification, which allows local     users to obtain sensitive information from kernel     memory in opportunistic circumstances by writing to a     file in an NFS filesystem and then reading the same     file.(CVE-2014-2038i1/4%0

  - KVM in the Linux kernel before 4.8.12, when I/O APIC is     enabled, does not properly restrict the VCPU index,     which allows guest OS users to gain host OS privileges     or cause a denial of service (out-of-bounds array     access and host OS crash) via a crafted interrupt     request, related to arch/x86/kvm/ioapic.c and     arch/x86/kvm/ioapic.h.(CVE-2016-9777i1/4%0

  - The instruction decoder in arch/x86/kvm/emulate.c in     the KVM subsystem in the Linux kernel before 3.18-rc2     lacks intended decoder-table flags for certain     RIP-relative instructions, which allows guest OS users     to cause a denial of service (NULL pointer dereference     and host OS crash) via a crafted     application.(CVE-2014-8480i1/4%0

  - arch/x86/kernel/entry_32.S in the Linux kernel through     3.15.1 on 32-bit x86 platforms, when syscall auditing     is enabled and the sep CPU feature flag is set, allows     local users to cause a denial of service (OOPS and     system crash) via an invalid syscall number, as     demonstrated by number 1000.(CVE-2014-4508i1/4%0

  - The overlayfs implementation in the Linux kernel     through 4.5.2 does not properly restrict the mount     namespace, which allows local users to gain privileges     by mounting an overlayfs filesystem on top of a FUSE     filesystem, and then executing a crafted setuid     program.(CVE-2016-1576i1/4%0

  - A use-after-free vulnerability was found when issuing     an ioctl to a sound device. This could allow a user to     exploit a race condition and create memory corruption     or possibly privilege escalation.(CVE-2017-15265i1/4%0

  - The drivers/uwb/uwbd.c in the Linux kernel, before     4.13.6, allows local users to cause a denial of service     (general protection fault and system crash) or possibly     have unspecified other impact via a crafted USB     device.(CVE-2017-16526i1/4%0

  - The Linux kernel was found vulnerable to a NULL pointer     dereference in the     drivers/net/phy/mdio-bcm-unimac.c:unimac_mdio_probe()     function caused by an unchecked return value from the     platform_get_resource() function. A successful flaw     exploitation can cause a system panic and a denial of     service. This flaw is believed not to be an attacker     triggerable as bad return value can be caused by     hardware misconfiguration.(CVE-2018-8043i1/4%0

  - A flaw was found in the Linux kernel SCSI subsystem,     which allowed a local user to gain privileges or cause     a denial of service (memory corruption and system     crash) by issuing an SG_IO ioctl call while a device     was being detached.(CVE-2015-8962i1/4%0

  - The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     before 4.6 allows local users to gain privileges or     cause a denial of service (use-after-free) via vectors     involving omission of the firmware name from a certain     data structure. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2016-7913i1/4%0

  - drivers/staging/ozwpan/ozusbsvc1.c in the OZWPAN driver     in the Linux kernel through 4.0.5 does not ensure that     certain length values are sufficiently large, which     allows remote attackers to cause a denial of service     (system crash or large loop) or possibly execute     arbitrary code via a crafted packet, related to the (1)     oz_usb_rx and (2) oz_usb_handle_ep_data     functions.(CVE-2015-4002i1/4%0

  - Race condition in the environ_read() function in     'fs/proc/base.c' in the Linux kernel before 4.5.4     allows local users to obtain sensitive information from     kernel memory by reading a '/proc/*/environ' file     during a process-setup time interval in which     environment-variable copying is     incomplete.(CVE-2016-7916i1/4%0

  - Integer signedness error in the oz_hcd_get_desc_cnf     function in drivers/staging/ozwpan/ozhcd.c in the     OZWPAN driver in the Linux kernel through 4.0.5 allows     remote attackers to cause a denial of service (system     crash) or possibly execute arbitrary code via a crafted     packet.(CVE-2015-4001i1/4%0

  - A vulnerability was found in the Linux kernel when     peeling off an association to the socket in another     network namespace. All transports in this association     are not to be rehashed and keep using the old key in     hashtable, thus removing transports from hashtable when     closing the socket, all transports are being freed.
    Later on a use-after-free issue could be caused when     looking up an association and dereferencing the     transports.(CVE-2017-15115i1/4%0

  - The evm_verify_hmac function in     security/integrity/evm/evm_main.c in the Linux kernel     before 4.5 does not properly copy data, which makes it     easier for local users to forge MAC values via a timing     side-channel attack.(CVE-2016-2085i1/4%0

  - A flaw was discovered in processing setsockopt for 32     bit processes on 64 bit systems. This flaw will allow     attackers to alter arbitrary kernel memory when     unloading a kernel module. This action is usually     restricted to root-privileged users but can also be     leveraged if the kernel is compiled with CONFIG_USER_NS     and CONFIG_NET_NS and the user is granted elevated     privileges.(CVE-2016-4997i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel-rt packages installed that are affected by multiple vulnerabilities:

  - Integer overflow in the aio_setup_single_vector function     in fs/aio.c in the Linux kernel 4.0 allows local users     to cause a denial of service or possibly have     unspecified other impact via a large AIO iovec. NOTE:
    this vulnerability exists because of a CVE-2012-6701     regression. (CVE-2015-8830)

  - A weakness was found in the Linux ASLR implementation.
    Any user able to running 32-bit applications in a x86     machine can disable ASLR by setting the RLIMIT_STACK     resource to unlimited. (CVE-2016-3672)

  - The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     before 4.6 allows local users to gain privileges or     cause a denial of service (use-after-free) via vectors     involving omission of the firmware name from a certain     data structure. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely. (CVE-2016-7913)

  - Use-after-free vulnerability in the snd_pcm_info()     function in the ALSA subsystem in the Linux kernel     allows attackers to induce a kernel memory corruption     and possibly crash or lock up a system. Due to the     nature of the flaw, a privilege escalation cannot be     fully ruled out, although we believe it is unlikely.
    (CVE-2017-0861)

  - A reachable assertion failure flaw was found in the     Linux kernel built with KVM virtualisation(CONFIG_KVM)     support with Virtual Function I/O feature (CONFIG_VFIO)     enabled. This failure could occur if a malicious guest     device sent a virtual interrupt (guest IRQ) with a     larger (>1024) index value. (CVE-2017-1000252)

  - Linux kernel Virtualization Module (CONFIG_KVM) for the     Intel processor family (CONFIG_KVM_INTEL) is vulnerable     to a DoS issue. It could occur if a guest was to flood     the I/O port 0x80 with write requests. A guest user     could use this flaw to crash the host kernel resulting     in DoS. (CVE-2017-1000407)

  - A flaw was found in the processing of incoming L2CAP     bluetooth commands. Uninitialized stack variables can be     sent to an attacker leaking data in kernel address     space. (CVE-2017-1000410)

  - A race condition was found in the Linux kernel before     version 4.11-rc1 in 'fs/timerfd.c' file which allows a     local user to cause a kernel list corruption or use-     after-free via simultaneous operations with a file     descriptor which leverage improper 'might_cancel'     queuing. An unprivileged local user could use this flaw     to cause a denial of service of the system. Due to the     nature of the flaw, privilege escalation cannot be fully     ruled out, although we believe it is unlikely.
    (CVE-2017-10661)

  - Linux kernel built with the KVM visualization support     (CONFIG_KVM), with nested visualization (nVMX) feature     enabled (nested=1), is vulnerable to a crash due to     disabled external interrupts. As L2 guest could access     (r/w) hardware CR8 register of the host(L0). In a nested     visualization setup, L2 guest user could use this flaw     to potentially crash the host(L0) resulting in DoS.
    (CVE-2017-12154)

  - It was found that in the Linux kernel through v4.14-rc5,     bio_map_user_iov() and bio_unmap_user() in 'block/bio.c'     do unbalanced pages refcounting if IO vector has small     consecutive buffers belonging to the same page.
    bio_add_pc_page() merges them into one, but the page     reference is never dropped, causing a memory leak and     possible system lockup due to out-of-memory condition.
    (CVE-2017-12190)

  - A flaw was found in the Linux kernel's implementation of     valid_master_desc() in which a memory buffer would be     compared to a userspace value with an incorrect size of     comparison. By bruteforcing the comparison, an attacker     could determine what was in memory after the description     and possibly obtain sensitive information from kernel     memory. (CVE-2017-13305)

  - A use-after-free vulnerability was found in a network     namespaces code affecting the Linux kernel since     v4.0-rc1 through v4.15-rc5. The function     get_net_ns_by_id() does not check for the net::count     value after it has found a peer network in netns_ids idr     which could lead to double free and memory corruption.
    This vulnerability could allow an unprivileged local     user to induce kernel memory corruption on the system,     leading to a crash. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     it is thought to be unlikely. (CVE-2017-15129)

  - A use-after-free vulnerability was found when issuing an     ioctl to a sound device. This could allow a user to     exploit a race condition and create memory corruption or     possibly privilege escalation. (CVE-2017-15265)

  - A flaw was found in the implementation of associative     arrays where the add_key systemcall and KEYCTL_UPDATE     operations allowed for a NULL payload with a nonzero     length. When accessing the payload within this length     parameters value, an unprivileged user could trivially     cause a NULL pointer dereference (kernel oops).
    (CVE-2017-15274)

  - The net/netfilter/nfnetlink_cthelper.c function in the     Linux kernel through 4.14.4 does not require the     CAP_NET_ADMIN capability for new, get, and del     operations. This allows local users to bypass intended     access restrictions because the nfnl_cthelper_list data     structure is shared across all net namespaces.
    (CVE-2017-17448)

  - The __netlink_deliver_tap_skb function in     net/netlink/af_netlink.c in the Linux kernel, through     4.14.4, does not restrict observations of Netlink     messages to a single net namespace, when CONFIG_NLMON is     enabled. This allows local users to obtain sensitive     information by leveraging the CAP_NET_ADMIN capability     to sniff an nlmon interface for all Netlink activity on     the system. (CVE-2017-17449)

  - The usb_destroy_configuration() function, in     'drivers/usb/core/config.c' in the USB core subsystem,     in the Linux kernel through 4.14.5 does not consider the     maximum number of configurations and interfaces before     attempting to release resources. This allows local users     to cause a denial of service, due to out-of-bounds write     access, or possibly have unspecified other impact via a     crafted USB device. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     we believe it is unlikely. (CVE-2017-17558)

  - The Salsa20 encryption algorithm in the Linux kernel,     before 4.14.8, does not correctly handle zero-length     inputs. This allows a local attacker the ability to use     the AF_ALG-based skcipher interface to cause a denial of     service (uninitialized-memory free and kernel crash) or     have an unspecified other impact by executing a crafted     sequence of system calls that use the blkcipher_walk     API. Both the generic implementation     (crypto/salsa20_generic.c) and x86 implementation     (arch/x86/crypto/salsa20_glue.c) of Salsa20 are     vulnerable. (CVE-2017-17805)

  - The tcpmss_mangle_packet function in     net/netfilter/xt_TCPMSS.c in the Linux kernel before     4.11, and 4.9.x before 4.9.36, allows remote attackers     to cause a denial of service (use-after-free and memory     corruption) or possibly have unspecified other impact by     leveraging the presence of xt_TCPMSS in an iptables     action. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely. (CVE-2017-18017)

  - The Linux kernel, before version 4.14.3, is vulnerable     to a denial of service in     drivers/md/dm.c:dm_get_from_kobject() which can be     caused by local users leveraging a race condition with
    __dm_destroy() during creation and removal of DM     devices. Only privileged local users (with CAP_SYS_ADMIN     capability) can directly perform the ioctl operations     for dm device creation and removal and this would     typically be outside the direct control of the     unprivileged attacker. (CVE-2017-18203)

  - The madvise_willneed function in the Linux kernel allows     local users to cause a denial of service (infinite loop)     by triggering use of MADVISE_WILLNEED for a DAX mapping.
    (CVE-2017-18208)

  - A flaw was found where the kernel truncated the value     used to indicate the size of a buffer which it would     later become zero using an untruncated value. This can     corrupt memory outside of the original allocation.
    (CVE-2017-9725)

  - In the Linux kernel versions 4.12, 3.10, 2.6, and     possibly earlier, a race condition vulnerability exists     in the sound system allowing for a potential deadlock     and memory corruption due to use-after-free condition     and thus denial of service. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely. (CVE-2018-1000004)

  - Improper validation in the bnx2x network card driver of     the Linux kernel version 4.15 can allow for denial of     service (DoS) attacks via a packet with a gso_size     larger than ~9700 bytes. Untrusted guest VMs can exploit     this vulnerability in the host machine, causing a crash     in the network card. (CVE-2018-1000026)

  - By mmap()ing a FUSE-backed file onto a process's memory     containing command line arguments (or environment     strings), an attacker can cause utilities from psutils     or procps (such as ps, w) or any other program which     makes a read() call to the /proc//cmdline (or     /proc//environ) files to block indefinitely (denial     of service) or for some controlled time (as a     synchronization primitive for other attacks).
    (CVE-2018-1120)

  - A null pointer dereference in dccp_write_xmit() function     in net/dccp/output.c in the Linux kernel allows a local     user to cause a denial of service by a number of certain     crafted system calls. (CVE-2018-1130)

  - An issue was discovered in the proc_pid_stack function     in fs/proc/base.c in the Linux kernel. An attacker with     a local account can trick the stack unwinder code to     leak stack contents to userspace. The fix allows only     root to inspect the kernel stack of an arbitrary task.
    (CVE-2018-17972)

  - A flaw was found in the Linux kernel with files on tmpfs     and hugetlbfs. An attacker is able to bypass file     permissions on filesystems mounted with tmpfs/hugetlbs     to modify a file and possibly disrupt normal system     behavior. At this time there is an understanding there     is no crash or privilege escalation but the impact of     modifications on these filesystems of files in     production systems may have adverse affects.
    (CVE-2018-18397)

  - In the Linux kernel before 4.17, a local attacker able     to set attributes on an xfs filesystem could make this     filesystem non-operational until the next mount by     triggering an unchecked error condition during an xfs     attribute change, because xfs_attr_shortform_addname in     fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE     operations with conversion of an attr from short to long     form. (CVE-2018-18690)

  - A flaw was found in the Linux kernel's handling of     loopback devices. An attacker, who has permissions to     setup loopback disks, may create a denial of service or     other unspecified actions. (CVE-2018-5344)

  - The acpi_smbus_hc_add function in drivers/acpi/sbshc.c     in the Linux kernel, through 4.14.15, allows local users     to obtain sensitive address information by reading dmesg     data from an SBS HC printk call. (CVE-2018-5750)

  - An error in the _sctp_make_chunk() function     (net/sctp/sm_make_chunk.c) when handling SCTP, packet     length can be exploited by a malicious local user to     cause a kernel crash and a DoS. (CVE-2018-5803)

  - In the function wmi_set_ie() in the Linux kernel the     length validation code does not handle unsigned integer     overflow properly. As a result, a large value of the     ie_len argument can cause a buffer overflow and thus a     memory corruption leading to a system crash or other or     unspecified impact. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     we believe it is unlikely. (CVE-2018-5848)

  - ALSA sequencer core initializes the event pool on demand     by invoking snd_seq_pool_init() when the first write     happens and the pool is empty. A user can reset the pool     size manually via ioctl concurrently, and this may lead     to UAF or out-of-bound access. (CVE-2018-7566)

  - A possible memory corruption due to a type confusion was     found in the Linux kernel in the sk_clone_lock()     function in the net/core/sock.c. The possibility of     local escalation of privileges cannot be fully ruled out     for a local unprivileged attacker. (CVE-2018-9568)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel packages installed that are affected by multiple vulnerabilities:

  - Integer overflow in the aio_setup_single_vector function     in fs/aio.c in the Linux kernel 4.0 allows local users     to cause a denial of service or possibly have     unspecified other impact via a large AIO iovec. NOTE:
    this vulnerability exists because of a CVE-2012-6701     regression. (CVE-2015-8830)

  - A weakness was found in the Linux ASLR implementation.
    Any user able to running 32-bit applications in a x86     machine can disable ASLR by setting the RLIMIT_STACK     resource to unlimited. (CVE-2016-3672)

  - The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     before 4.6 allows local users to gain privileges or     cause a denial of service (use-after-free) via vectors     involving omission of the firmware name from a certain     data structure. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely. (CVE-2016-7913)

  - Use-after-free vulnerability in the snd_pcm_info()     function in the ALSA subsystem in the Linux kernel     allows attackers to induce a kernel memory corruption     and possibly crash or lock up a system. Due to the     nature of the flaw, a privilege escalation cannot be     fully ruled out, although we believe it is unlikely.
    (CVE-2017-0861)

  - A reachable assertion failure flaw was found in the     Linux kernel built with KVM virtualisation(CONFIG_KVM)     support with Virtual Function I/O feature (CONFIG_VFIO)     enabled. This failure could occur if a malicious guest     device sent a virtual interrupt (guest IRQ) with a     larger (>1024) index value. (CVE-2017-1000252)

  - Linux kernel Virtualization Module (CONFIG_KVM) for the     Intel processor family (CONFIG_KVM_INTEL) is vulnerable     to a DoS issue. It could occur if a guest was to flood     the I/O port 0x80 with write requests. A guest user     could use this flaw to crash the host kernel resulting     in DoS. (CVE-2017-1000407)

  - A flaw was found in the processing of incoming L2CAP     bluetooth commands. Uninitialized stack variables can be     sent to an attacker leaking data in kernel address     space. (CVE-2017-1000410)

  - A race condition was found in the Linux kernel before     version 4.11-rc1 in 'fs/timerfd.c' file which allows a     local user to cause a kernel list corruption or use-     after-free via simultaneous operations with a file     descriptor which leverage improper 'might_cancel'     queuing. An unprivileged local user could use this flaw     to cause a denial of service of the system. Due to the     nature of the flaw, privilege escalation cannot be fully     ruled out, although we believe it is unlikely.
    (CVE-2017-10661)

  - Linux kernel built with the KVM visualization support     (CONFIG_KVM), with nested visualization (nVMX) feature     enabled (nested=1), is vulnerable to a crash due to     disabled external interrupts. As L2 guest could access     (r/w) hardware CR8 register of the host(L0). In a nested     visualization setup, L2 guest user could use this flaw     to potentially crash the host(L0) resulting in DoS.
    (CVE-2017-12154)

  - It was found that in the Linux kernel through v4.14-rc5,     bio_map_user_iov() and bio_unmap_user() in 'block/bio.c'     do unbalanced pages refcounting if IO vector has small     consecutive buffers belonging to the same page.
    bio_add_pc_page() merges them into one, but the page     reference is never dropped, causing a memory leak and     possible system lockup due to out-of-memory condition.
    (CVE-2017-12190)

  - A flaw was found in the Linux kernel's implementation of     valid_master_desc() in which a memory buffer would be     compared to a userspace value with an incorrect size of     comparison. By bruteforcing the comparison, an attacker     could determine what was in memory after the description     and possibly obtain sensitive information from kernel     memory. (CVE-2017-13305)

  - A use-after-free vulnerability was found in a network     namespaces code affecting the Linux kernel since     v4.0-rc1 through v4.15-rc5. The function     get_net_ns_by_id() does not check for the net::count     value after it has found a peer network in netns_ids idr     which could lead to double free and memory corruption.
    This vulnerability could allow an unprivileged local     user to induce kernel memory corruption on the system,     leading to a crash. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     it is thought to be unlikely. (CVE-2017-15129)

  - A use-after-free vulnerability was found when issuing an     ioctl to a sound device. This could allow a user to     exploit a race condition and create memory corruption or     possibly privilege escalation. (CVE-2017-15265)

  - A flaw was found in the implementation of associative     arrays where the add_key systemcall and KEYCTL_UPDATE     operations allowed for a NULL payload with a nonzero     length. When accessing the payload within this length     parameters value, an unprivileged user could trivially     cause a NULL pointer dereference (kernel oops).
    (CVE-2017-15274)

  - The net/netfilter/nfnetlink_cthelper.c function in the     Linux kernel through 4.14.4 does not require the     CAP_NET_ADMIN capability for new, get, and del     operations. This allows local users to bypass intended     access restrictions because the nfnl_cthelper_list data     structure is shared across all net namespaces.
    (CVE-2017-17448)

  - The __netlink_deliver_tap_skb function in     net/netlink/af_netlink.c in the Linux kernel, through     4.14.4, does not restrict observations of Netlink     messages to a single net namespace, when CONFIG_NLMON is     enabled. This allows local users to obtain sensitive     information by leveraging the CAP_NET_ADMIN capability     to sniff an nlmon interface for all Netlink activity on     the system. (CVE-2017-17449)

  - The usb_destroy_configuration() function, in     'drivers/usb/core/config.c' in the USB core subsystem,     in the Linux kernel through 4.14.5 does not consider the     maximum number of configurations and interfaces before     attempting to release resources. This allows local users     to cause a denial of service, due to out-of-bounds write     access, or possibly have unspecified other impact via a     crafted USB device. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     we believe it is unlikely. (CVE-2017-17558)

  - The Salsa20 encryption algorithm in the Linux kernel,     before 4.14.8, does not correctly handle zero-length     inputs. This allows a local attacker the ability to use     the AF_ALG-based skcipher interface to cause a denial of     service (uninitialized-memory free and kernel crash) or     have an unspecified other impact by executing a crafted     sequence of system calls that use the blkcipher_walk     API. Both the generic implementation     (crypto/salsa20_generic.c) and x86 implementation     (arch/x86/crypto/salsa20_glue.c) of Salsa20 are     vulnerable. (CVE-2017-17805)

  - The tcpmss_mangle_packet function in     net/netfilter/xt_TCPMSS.c in the Linux kernel before     4.11, and 4.9.x before 4.9.36, allows remote attackers     to cause a denial of service (use-after-free and memory     corruption) or possibly have unspecified other impact by     leveraging the presence of xt_TCPMSS in an iptables     action. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely. (CVE-2017-18017)

  - The Linux kernel, before version 4.14.3, is vulnerable     to a denial of service in     drivers/md/dm.c:dm_get_from_kobject() which can be     caused by local users leveraging a race condition with
    __dm_destroy() during creation and removal of DM     devices. Only privileged local users (with CAP_SYS_ADMIN     capability) can directly perform the ioctl operations     for dm device creation and removal and this would     typically be outside the direct control of the     unprivileged attacker. (CVE-2017-18203)

  - The madvise_willneed function in the Linux kernel allows     local users to cause a denial of service (infinite loop)     by triggering use of MADVISE_WILLNEED for a DAX mapping.
    (CVE-2017-18208)

  - A flaw was found where the kernel truncated the value     used to indicate the size of a buffer which it would     later become zero using an untruncated value. This can     corrupt memory outside of the original allocation.
    (CVE-2017-9725)

  - In the Linux kernel versions 4.12, 3.10, 2.6, and     possibly earlier, a race condition vulnerability exists     in the sound system allowing for a potential deadlock     and memory corruption due to use-after-free condition     and thus denial of service. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely. (CVE-2018-1000004)

  - Improper validation in the bnx2x network card driver of     the Linux kernel version 4.15 can allow for denial of     service (DoS) attacks via a packet with a gso_size     larger than ~9700 bytes. Untrusted guest VMs can exploit     this vulnerability in the host machine, causing a crash     in the network card. (CVE-2018-1000026)

  - By mmap()ing a FUSE-backed file onto a process's memory     containing command line arguments (or environment     strings), an attacker can cause utilities from psutils     or procps (such as ps, w) or any other program which     makes a read() call to the /proc//cmdline (or     /proc//environ) files to block indefinitely (denial     of service) or for some controlled time (as a     synchronization primitive for other attacks).
    (CVE-2018-1120)

  - A null pointer dereference in dccp_write_xmit() function     in net/dccp/output.c in the Linux kernel allows a local     user to cause a denial of service by a number of certain     crafted system calls. (CVE-2018-1130)

  - An issue was discovered in the proc_pid_stack function     in fs/proc/base.c in the Linux kernel. An attacker with     a local account can trick the stack unwinder code to     leak stack contents to userspace. The fix allows only     root to inspect the kernel stack of an arbitrary task.
    (CVE-2018-17972)

  - A flaw was found in the Linux kernel with files on tmpfs     and hugetlbfs. An attacker is able to bypass file     permissions on filesystems mounted with tmpfs/hugetlbs     to modify a file and possibly disrupt normal system     behavior. At this time there is an understanding there     is no crash or privilege escalation but the impact of     modifications on these filesystems of files in     production systems may have adverse affects.
    (CVE-2018-18397)

  - In the Linux kernel before 4.17, a local attacker able     to set attributes on an xfs filesystem could make this     filesystem non-operational until the next mount by     triggering an unchecked error condition during an xfs     attribute change, because xfs_attr_shortform_addname in     fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE     operations with conversion of an attr from short to long     form. (CVE-2018-18690)

  - Modern operating systems implement virtualization of     physical memory to efficiently use available system     resources and provide inter-domain protection through     access control and isolation. The L1TF issue was found     in the way the x86 microprocessor designs have     implemented speculative execution of instructions (a     commonly used performance optimization) in combination     with handling of page-faults caused by terminated     virtual to physical address resolving process. As a     result, an unprivileged attacker could use this flaw to     read privileged memory of the kernel or other processes     and/or cross guest/host boundaries to read host memory     by conducting targeted cache side-channel attacks.
    (CVE-2018-3646)

  - A flaw was found in the Linux kernel's handling of     loopback devices. An attacker, who has permissions to     setup loopback disks, may create a denial of service or     other unspecified actions. (CVE-2018-5344)

  - The acpi_smbus_hc_add function in drivers/acpi/sbshc.c     in the Linux kernel, through 4.14.15, allows local users     to obtain sensitive address information by reading dmesg     data from an SBS HC printk call. (CVE-2018-5750)

  - An error in the _sctp_make_chunk() function     (net/sctp/sm_make_chunk.c) when handling SCTP, packet     length can be exploited by a malicious local user to     cause a kernel crash and a DoS. (CVE-2018-5803)

  - In the function wmi_set_ie() in the Linux kernel the     length validation code does not handle unsigned integer     overflow properly. As a result, a large value of the     ie_len argument can cause a buffer overflow and thus a     memory corruption leading to a system crash or other or     unspecified impact. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out, although     we believe it is unlikely. (CVE-2018-5848)

  - ALSA sequencer core initializes the event pool on demand     by invoking snd_seq_pool_init() when the first write     happens and the pool is empty. A user can reset the pool     size manually via ioctl concurrently, and this may lead     to UAF or out-of-bound access. (CVE-2018-7566)

  - A possible memory corruption due to a type confusion was     found in the Linux kernel in the sk_clone_lock()     function in the net/core/sock.c. The possibility of     local escalation of privileges cannot be fully ruled out     for a local unprivileged attacker. (CVE-2018-9568)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - hw: cpu: speculative execution permission faults     handling (CVE-2017-5754, Important, KVM for Power)

  - kernel: Buffer overflow in firewire driver via crafted     incoming packets (CVE-2016-8633, Important)

  - kernel: Use-after-free vulnerability in DCCP socket     (CVE-2017-8824, Important)

  - Kernel: kvm: nVMX: L2 guest could access hardware(L0)     CR8 register (CVE-2017-12154, Important)

  - kernel: v4l2: disabled memory access protection     mechanism allowing privilege escalation (CVE-2017-13166,     Important)

  - kernel: media: use-after-free in [tuner-xc2028] media     driver (CVE-2016-7913, Moderate)

  - kernel: drm/vmwgfx: fix integer overflow in     vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

  - kernel: Incorrect type conversion for size during dma     allocation (CVE-2017-9725, Moderate)

  - kernel: memory leak when merging buffers in SCSI IO     vectors (CVE-2017-12190, Moderate)

  - kernel: vfs: BUG in truncate_inode_pages_range() and     fuse client (CVE-2017-15121, Moderate)

  - kernel: Use-after-free in     userfaultfd_event_wait_completion function in     userfaultfd.c (CVE-2017-15126, Moderate)

  - kernel: net: double-free and memory corruption in     get_net_ns_by_id() (CVE-2017-15129, Moderate)

  - kernel: Use-after-free in snd_seq_ioctl_create_port()     (CVE-2017-15265, Moderate)

  - kernel: Missing capabilities check in     net/netfilter/nfnetlink_cthelper.c allows for     unprivileged access to systemwide nfnl_cthelper_list     structure (CVE-2017-17448, Moderate)

  - kernel: Missing namespace check in     net/netlink/af_netlink.c allows for network monitors to     observe systemwide activity (CVE-2017-17449, Moderate)

  - kernel: Unallocated memory access by malicious USB     device via bNumInterfaces overflow (CVE-2017-17558,     Moderate)

  - kernel: netfilter: use-after-free in     tcpmss_mangle_packet function in     net/netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

  - kernel: Race condition in     drivers/md/dm.c:dm_get_from_kobject() allows local users     to cause a denial of service (CVE-2017-18203, Moderate)

  - kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ     (CVE-2017-1000252, Moderate)

  - Kernel: KVM: DoS via write flood to I/O port 0x80     (CVE-2017-1000407, Moderate)

  - kernel: Stack information leak in the EFS element     (CVE-2017-1000410, Moderate)

  - kernel: Kernel address information leak in     drivers/acpi/sbshc.c:acpi_smbus_hc_add() function     potentially allowing KASLR bypass (CVE-2018-5750,     Moderate)

  - kernel: Race condition in sound system can lead to     denial of service (CVE-2018-1000004, Moderate)

  - kernel: multiple Low security impact security issues     (CVE-2016-3672, CVE-2017-14140, CVE-2017-15116,     CVE-2017-15127, CVE-2018-6927, Low)

Additional Changes :

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.103 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-1000410: The Linux kernel was affected by an     information lea that lies in the processing of incoming     L2CAP commands - ConfigRequest, and ConfigResponse     messages. (bnc#1070535).

  - CVE-2017-11600: net/xfrm/xfrm_policy.c in the Linux     kernel did not ensure that the dir value of     xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which     allowed local users to cause a denial of service     (out-of-bounds access) or possibly have unspecified     other impact via an XFRM_MSG_MIGRATE xfrm Netlink     message (bnc#1050231).

  - CVE-2017-12193: The     assoc_array_insert_into_terminal_node function in     lib/assoc_array.c in the Linux kernel mishandled node     splitting, which allowed local users to cause a denial     of service (NULL pointer dereference and panic) via a     crafted application, as demonstrated by the keyring key     type, and key addition and link creation operations     (bnc#1066192).

  - CVE-2017-15115: The sctp_do_peeloff function in     net/sctp/socket.c in the Linux kernel did not check     whether the intended netns is used in a peel-off action,     which allowed local users to cause a denial of service     (use-after-free and system crash) or possibly have     unspecified other impact via crafted system calls     (bnc#1068671).

  - CVE-2017-16528: sound/core/seq_device.c in the Linux     kernel allowed local users to cause a denial of service     (snd_rawmidi_dev_seq_free use-after-free and system     crash) or possibly have unspecified other impact via a     crafted USB device (bnc#1066629).

  - CVE-2017-16536: The cx231xx_usb_probe function in     drivers/media/usb/cx231xx/cx231xx-cards.c in the Linux     kernel allowed local users to cause a denial of service     (NULL pointer dereference and system crash) or possibly     have unspecified other impact via a crafted USB device     (bnc#1066606).

  - CVE-2017-16537: The imon_probe function in     drivers/media/rc/imon.c in the Linux kernel allowed     local users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact via a crafted USB device     (bnc#1066573).

  - CVE-2017-16645: The ims_pcu_get_cdc_union_desc function     in drivers/input/misc/ims-pcu.c in the Linux kernel     allowed local users to cause a denial of service     (ims_pcu_parse_cdc_data out-of-bounds read and system     crash) or possibly have unspecified other impact via a     crafted USB device (bnc#1067132).

  - CVE-2017-16646:
    drivers/media/usb/dvb-usb/dib0700_devices.c in the Linux     kernel allowed local users to cause a denial of service     (BUG and system crash) or possibly have unspecified     other impact via a crafted USB device (bnc#1067105).

  - CVE-2017-16994: The walk_hugetlb_range function in     mm/pagewalk.c in the Linux kernel mishandled holes in     hugetlb ranges, which allowed local users to obtain     sensitive information from uninitialized kernel memory     via crafted use of the mincore() system call     (bnc#1069996).

  - CVE-2017-17448: net/netfilter/nfnetlink_cthelper.c in     the Linux kernel did not require the CAP_NET_ADMIN     capability for new, get, and del operations, which     allowed local users to bypass intended access     restrictions because the nfnl_cthelper_list data     structure is shared across all net namespaces     (bnc#1071693).

  - CVE-2017-17449: The __netlink_deliver_tap_skb function     in net/netlink/af_netlink.c in the Linux kernel did not     restrict observations of Netlink messages to a single     net namespace, which allowed local users to obtain     sensitive information by leveraging the CAP_NET_ADMIN     capability to sniff an nlmon interface for all Netlink     activity on the system (bnc#1071694).

  - CVE-2017-17450: net/netfilter/xt_osf.c in the Linux     kernel did not require the CAP_NET_ADMIN capability for     add_callback and remove_callback operations, which     allowed local users to bypass intended access     restrictions because the xt_osf_fingers data structure     is shared across all net namespaces (bnc#1071695).

  - CVE-2017-7482: Fixed an overflow when decoding a krb5     principal. (bnc#1046107).

  - CVE-2017-8824: The dccp_disconnect function in     net/dccp/proto.c in the Linux kernel allowed local users     to gain privileges or cause a denial of service     (use-after-free) via an AF_UNSPEC connect system call     during the DCCP_LISTEN state (bnc#1070771).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3619-2 advisory.

    USN-3619-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu     14.04 LTS.

    Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly     performed sign extension in some situations. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2017-16995)

    It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM     subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2017-0861)

    It was discovered that the KVM implementation in the Linux kernel allowed passthrough of the diagnostic     I/O port 0x80. An attacker in a guest VM could use this to cause a denial of service (system crash) in the     host OS. (CVE-2017-1000407)

    It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the     Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses).
    (CVE-2017-11472)

    It was discovered that a use-after-free vulnerability existed in the network namespaces implementation in     the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-15129)

    It was discovered that the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel     contained a use-after-free when handling device removal. A physically proximate attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16528)

    Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate     endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2017-16532)

    Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not     properly validate interface descriptors. A physically proximate attacker could use this to cause a denial     of service (system crash). (CVE-2017-16536)

    Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly     validate device metadata. A physically proximate attacker could use this to cause a denial of service     (system crash). (CVE-2017-16537)

    Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver in the Linux kernel did not     properly validate device descriptors. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2017-16645)

    Andrey Konovalov discovered that the DiBcom DiB0700 USB DVB driver in the Linux kernel did not properly     handle detach events. A physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2017-16646)

    Andrey Konovalov discovered that the CDC USB Ethernet driver did not properly validate device descriptors.
    A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16649)

    Andrey Konovalov discovered that the QMI WWAN USB driver did not properly validate device descriptors. A     physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16650)

    It was discovered that the USB Virtual Host Controller Interface (VHCI) driver in the Linux kernel     contained an information disclosure vulnerability. A physically proximate attacker could use this to     expose sensitive information (kernel memory). (CVE-2017-16911)

    It was discovered that the USB over IP implementation in the Linux kernel did not validate endpoint     numbers. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16912)

    It was discovered that the USB over IP implementation in the Linux kernel did not properly validate     CMD_SUBMIT packets. A remote attacker could use this to cause a denial of service (excessive memory     consumption). (CVE-2017-16913)

    It was discovered that the USB over IP implementation in the Linux kernel contained a NULL pointer     dereference error. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16914)

    It was discovered that the HugeTLB component of the Linux kernel did not properly handle holes in hugetlb     ranges. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-16994)

    It was discovered that the netfilter component of the Linux did not properly restrict access to the     connection tracking helpers list. A local attacker could use this to bypass intended access restrictions.
    (CVE-2017-17448)

    It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of     netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive     information (kernel netlink traffic). (CVE-2017-17449)

    It was discovered that the netfilter passive OS fingerprinting (xt_osf) module did not properly perform     access control checks. A local attacker could improperly modify the system-wide OS fingerprint list.
    (CVE-2017-17450)

    It was discovered that the core USB subsystem in the Linux kernel did not validate the number of     configurations and interfaces in a device. A physically proximate attacker could use this to cause a     denial of service (system crash). (CVE-2017-17558)

    Dmitry Vyukov discovered that the KVM implementation in the Linux kernel contained an out-of-bounds read     when handling memory-mapped I/O. A local attacker could use this to expose sensitive information.
    (CVE-2017-17741)

    It was discovered that the Salsa20 encryption algorithm implementations in the Linux kernel did not     properly handle zero-length inputs. A local attacker could use this to cause a denial of service (system     crash). (CVE-2017-17805)

    It was discovered that the HMAC implementation did not validate the state of the underlying cryptographic     hash algorithm. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-17806)

    It was discovered that the keyring implementation in the Linux kernel did not properly check permissions     when a key request was performed on a task's default keyring. A local attacker could use this to add keys     to unauthorized keyrings. (CVE-2017-17807)

    Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel     contained a branch-pruning logic issue around unreachable code. A local attacker could use this to cause a     denial of service. (CVE-2017-17862)

    It was discovered that the parallel cryptography component of the Linux kernel incorrectly freed kernel     memory. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2017-18075)

    It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A     local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203)

    It was discovered that a race condition existed in the OCFS2 file system implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2017-18204)

    It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel     in certain circumstances. A local attacker could use this to cause a denial of service (system hang).
    (CVE-2017-18208)

    Andy Lutomirski discovered that the KVM implementation in the Linux kernel was vulnerable to a debug     exception error when single-stepping through a syscall. A local attacker in a non-Linux guest vm could     possibly use this to gain administrative privileges in the guest vm. (CVE-2017-7518)

    It was discovered that the Broadcom NetXtremeII ethernet driver in the Linux kernel did not properly     validate Generic Segment Offload (GSO) packet sizes. An attacker could use this to cause a denial of     service (interface unavailability). (CVE-2018-1000026)

    It was discovered that the Reliable Datagram Socket (RDS) implementation in the Linux kernel contained an     out-of-bounds write during RDMA page allocation. An attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2018-5332)

    Mohamed Ghannam discovered a null pointer dereference in the RDS (Reliable Datagram Sockets) protocol     implementation of the Linux kernel. A local attacker could use this to cause a denial of service (system     crash). (CVE-2018-5333)

     discovered that a race condition existed in loop block device implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2018-5344)

    It was discovered that an integer overflow error existed in the futex implementation in the Linux kernel.
    A local attacker could use this to cause a denial of service (system crash). (CVE-2018-6927)

    It was discovered that a NULL pointer dereference existed in the RDS (Reliable Datagram Sockets) protocol     implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system     crash). (CVE-2018-7492)

    It was discovered that the Broadcom UniMAC MDIO bus controller driver in the Linux kernel did not properly     validate device resources. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2018-8043)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
105433	Debian DSA-4073-1 : linux - security update	Nessus	Debian Local Security Checks	2017/12/26	2021/1/4	high
108942	RHEL 7 : kernel-alt (RHSA-2018:0654)	Nessus	Red Hat Local Security Checks	2018/4/10	2025/3/16	high
105344	openSUSE Security Update : the Linux Kernel (openSUSE-2017-1390) (Dirty COW)	Nessus	SuSE Local Security Checks	2017/12/18	2021/1/19	high
184219	F5 Networks BIG-IP : Linux kernel vulnerability (K01043241)	Nessus	F5 Networks Local Security Checks	2023/11/2	2024/5/7	high
109623	Virtuozzo 7 : readykernel-patch (VZA-2018-026)	Nessus	Virtuozzo Local Security Checks	2018/5/9	2024/10/11	high
121903	Photon OS 2.0: Linux PHSA-2018-2.0-0009	Nessus	PhotonOS Local Security Checks	2019/2/7	2024/7/22	high
105383	Fedora 26 : kernel (2017-ba6b6e71f7)	Nessus	Fedora Local Security Checks	2017/12/20	2021/1/6	high
124824	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1501)	Nessus	Huawei Local Security Checks	2019/5/13	2021/1/6	high
109380	CentOS 7 : kernel (CESA-2018:1062)	Nessus	CentOS Local Security Checks	2018/4/27	2019/12/31	critical
109829	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4109)	Nessus	Oracle Linux Local Security Checks	2018/5/16	2024/10/23	high
124981	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1528)	Nessus	Huawei Local Security Checks	2019/5/14	2022/5/20	high
127281	NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0074)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2021/1/14	critical
127272	NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0070)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2021/1/14	critical
109449	Scientific Linux Security Update : kernel on SL7.x x86_64 (20180410) (Meltdown)	Nessus	Scientific Linux Local Security Checks	2018/5/1	2024/10/16	critical
105460	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:3398-1)	Nessus	SuSE Local Security Checks	2017/12/26	2021/1/6	high
108878	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3619-2)	Nessus	Ubuntu Local Security Checks	2018/4/6	2024/8/27	high

检测

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