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

CVE-2012-6704, CVE-2016-9793

Eric Dumazet found that a local user with CAP_NET_ADMIN capability could set a socket's buffer size to be negative, leading to a denial of service or other security impact. Additionally, in kernel versions prior to 3.5, any user could do this if sysctl net.core.rmem_max was changed to a very large value.

CVE-2015-1350 / #770492

Ben Harris reported that local users could remove set-capability attributes from any file visible to them, allowing a denial of service.

CVE-2015-8962

Calvin Owens fouund that removing a SCSI device while it was being accessed through the SCSI generic (sg) driver led to a double- free, possibly causing a denial of service (crash or memory corruption) or privilege escalation. This could be exploited by local users with permision to access a SCSI device node.

CVE-2015-8963

Sasha Levin reported that hot-unplugging a CPU resulted in a use-after-free by the performance events (perf) subsystem, possibly causing a denial of service (crash or memory corruption) or privilege escalation. This could by exploited by any local user.

CVE-2015-8964

It was found that the terminal/serial (tty) subsystem did not reliably reset the terminal buffer state when the terminal line discipline was changed. This could allow a local user with access to a terminal device to read sensitive information from kernel memory.

CVE-2016-7097

Jan Kara found that changing the POSIX ACL of a file never cleared its set-group-ID flag, which should be done if the user changing it is not a member of the group-owner. In some cases, this would allow the user-owner of an executable to gain the privileges of the group-owner.

CVE-2016-7910

Vegard Nossum discovered that a memory allocation failure while handling a read of /proc/diskstats or /proc/partitions could lead to a use-after-free, possibly causing a denial of service (crash or memory corruption) or privilege escalation.

CVE-2016-7911

Dmitry Vyukov reported that a race between ioprio_get() and ioprio_set() system calls could result in a use-after-free, possibly causing a denial of service (crash) or leaking sensitive information.

CVE-2016-7915

Benjamin Tissoires found that HID devices could trigger an out-of- bounds memory access in the HID core. A physically present user could possibly use this for denial of service (crash) or to leak sensitive information.

CVE-2016-8399

Qidan He reported that the IPv4 ping socket implementation did not validate the length of packets to be sent. A user with permisson to use ping sockets could cause an out-of-bounds read, possibly resulting in a denial of service or information leak. However, on Debian systems no users have permission to create ping sockets by default.

CVE-2016-8633

Eyal Itkin reported that the IP-over-Firewire driver (firewire-net) did not validate the offset or length in link-layer fragmentation headers. This allowed a remote system connected by Firewire to write to memory after a packet buffer, leading to a denial of service (crash) or remote code execution.

CVE-2016-8645

Marco Grassi reported that if a socket filter (BPF program) attached to a TCP socket truncates or removes the TCP header, this could cause a denial of service (crash). This was exploitable by any local user.

CVE-2016-8655

Philip Pettersson found that the implementation of packet sockets (AF_PACKET family) had a race condition between enabling a transmit ring buffer and changing the version of buffers used, which could result in a use-after-free. A local user with the CAP_NET_ADMIN capability could exploit this for privilege escalation.

CVE-2016-9178

Al Viro found that a failure to read data from user memory might lead to a information leak on the x86 architecture (amd64 or i386).

CVE-2016-9555

Andrey Konovalov reported that the SCTP implementation does not validate 'out of the blue' packet chunk lengths early enough. A remote system able could use this to cause a denial of service (crash) or other security impact for systems using SCTP.

CVE-2016-9576, CVE-2016-10088

Dmitry Vyukov reported that using splice() with the SCSI generic driver led to kernel memory corruption. Local users with permision to access a SCSI device node could exploit this for privilege escalation.

CVE-2016-9756

Dmitry Vyukov reported that KVM for the x86 architecture (amd64 or i386) did not correctly handle the failure of certain instructions that require software emulation on older processors. This could be exploited by guest systems to leak sensitive information or for denial of service (log spam).

CVE-2016-9794

Baozeng Ding reported a race condition in the ALSA (sound) subsystem that could result in a use-after-free. Local users with access to a PCM sound device could exploit this for denial of service (crash or memory corruption) or other security impact.

For Debian 7 'Wheezy', these problems have been fixed in version 3.2.84-1. This version also includes bug fixes from upstream version 3.2.84 and updates the PREEMPT_RT featureset to version 3.2.84-rt122.
Finally, this version adds the option to mitigate security issues in the performance events (perf) subsystem by disabling use by unprivileged users. This can be done by setting sysctl kernel.perf_event_paranoid=3.

For Debian 8 'Jessie', these problems have been fixed in version 3.16.39-1 which will be included in the next point release (8.6).

We recommend that you upgrade your linux packages.

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

The SUSE Linux Enterprise 11 SP4 kernel was updated to 3.0.101-94 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2017-5551: tmpfs: clear S_ISGID when setting posix     ACLs (bsc#1021258).

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device NOTE: this vulnerability existed because of an     incomplete fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2016-5696: TCP, when using a large Window Size, made     it easier for remote attackers to guess sequence numbers     and cause a denial of service (connection loss) to     persistent TCP connections by repeatedly injecting a TCP     RST packet, especially in protocols that use long-lived     connections, such as BGP (bnc#989152).

  - CVE-2015-1350: The VFS subsystem in the Linux kernel 3.x     provided an incomplete set of requirements for setattr     operations that underspecified removing extended     privilege attributes, which allowed local users to cause     a denial of service (capability stripping) via a failed     invocation of a system call, as demonstrated by using     chown to remove a capability from the ping or Wireshark     dumpcap program (bnc#914939).

  - CVE-2016-8632: The tipc_msg_build function in     net/tipc/msg.c in the Linux kernel did not validate the     relationship between the minimum fragment length and the     maximum packet size, which allowed local users to gain     privileges or cause a denial of service (heap-based     buffer overflow) by leveraging the CAP_NET_ADMIN     capability (bnc#1008831).

  - CVE-2016-8399: An elevation of privilege vulnerability     in the kernel networking subsystem could enable a local     malicious application to execute arbitrary code within     the context of the kernel. This issue is rated as     Moderate because it first requires compromising a     privileged process and current compiler optimizations     restrict access to the vulnerable code. (bnc#1014746).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option     (bnc#1013531).

  - CVE-2012-6704: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1) SO_SNDBUF or     (2) SO_RCVBUF option (bnc#1013542).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-9685: Multiple memory leaks in error paths in     fs/xfs/xfs_attr_list.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via crafted XFS filesystem operations (bnc#1012832).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacked     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2013-6368: The KVM subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (system crash) via a VAPIC synchronization     operation involving a page-end address (bnc#853052).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-7916: Race condition in the environ_read     function in fs/proc/base.c in the Linux kernel allowed     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     (bnc#1010467).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel, in certain unusual hardware configurations,     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:1062 advisory.

    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. Schnherr (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.

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003400 advisory.

    drivers/firewire/net.c in the Linux kernel before 4.8.7, in certain unusual hardware configurations,     allows remote attackers to execute arbitrary code via crafted fragmented packets.

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

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

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3535 advisory.

    - RHEL: complement upstream workaround for CVE-2016-10142. (Quentin Casasnovas)  [Orabug: 25765786]     {CVE-2016-10142} {CVE-2016-10142}
    - net: ping: check minimum size on ICMP header length (Kees Cook)  [Orabug: 25766914]  {CVE-2016-8399}
    - ipv6: stop sending PTB packets for MTU < 1280 (Hagen Paul Pfeifer)  [Orabug: 25765786]  {CVE-2016-10142}
    - sg_write()/bsg_write() is not fit to be called under KERNEL_DS (Al Viro)  [Orabug: 25765448]     {CVE-2016-10088}
    - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter chang)  [Orabug: 25752011]  {CVE-2017-7187}
    - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander Popov)  [Orabug: 25696689]  {CVE-2017-2636}
    - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)  [Orabug: 25696689]  {CVE-2017-2636}
    - drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc (Fabian Frederick)  [Orabug: 25696689]     {CVE-2017-2636}
    - list: introduce list_first_entry_or_null (Jiri Pirko)  [Orabug: 25696689]  {CVE-2017-2636}
    - firewire: net: guard against rx buffer overflows (Stefan Richter)  [Orabug: 25451538]  {CVE-2016-8633}
    - x86/mm/32: Enable full randomization on i386 and X86_32 (Hector Marco-Gisbert)  [Orabug: 25463929]     {CVE-2016-3672}
    - x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member (Radu Caragea)  [Orabug:
    25463929]  {CVE-2016-3672}
    - sg_start_req(): make sure that there's not too many elements in iovec (Al Viro)  [Orabug: 25490377]     {CVE-2015-5707}
    - tcp: take care of truncations done by sk_filter() (Eric Dumazet)  [Orabug: 25507232]  {CVE-2016-8645}
    - rose: limit sk_filter trim to payload (Willem de Bruijn)  [Orabug: 25507232]  {CVE-2016-8645}
    - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() (Dan Carpenter)  [Orabug: 25507330]     {CVE-2016-7425}
    - x86: bpf_jit: fix compilation of large bpf programs (Alexei Starovoitov)  [Orabug: 25507375]     {CVE-2015-4700}
    - net: fix a kernel infoleak in x25 module (Kangjie Lu)  [Orabug: 25512417]  {CVE-2016-4580}
    - USB: digi_acceleport: do sanity checking for the number of ports (Oliver Neukum)  [Orabug: 25512472]     {CVE-2016-3140}

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.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - RHEL: complement upstream workaround for CVE-2016-10142.
    (Quentin Casasnovas) [Orabug: 25765786] (CVE-2016-10142)     (CVE-2016-10142)

  - net: ping: check minimum size on ICMP header length     (Kees Cook) [Orabug: 25766914] (CVE-2016-8399)

  - ipv6: stop sending PTB packets for MTU < 1280 (Hagen     Paul Pfeifer) [Orabug: 25765786] (CVE-2016-10142)

  - sg_write/bsg_write is not fit to be called under     KERNEL_DS (Al Viro) [Orabug: 25765448] (CVE-2016-10088)

  - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter     chang) [Orabug: 25752011] (CVE-2017-7187)

  - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander     Popov) [Orabug: 25696689] (CVE-2017-2636)

  - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)     [Orabug: 25696689] (CVE-2017-2636)

  - drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc     (Fabian Frederick) [Orabug: 25696689] (CVE-2017-2636)

  - list: introduce list_first_entry_or_null (Jiri Pirko)     [Orabug: 25696689] (CVE-2017-2636)

  - firewire: net: guard against rx buffer overflows (Stefan     Richter) [Orabug: 25451538] (CVE-2016-8633)

  - x86/mm/32: Enable full randomization on i386 and X86_32     (Hector Marco-Gisbert) [Orabug: 25463929]     (CVE-2016-3672)

  - x86 get_unmapped_area: Access mmap_legacy_base through     mm_struct member (Radu Caragea) [Orabug: 25463929]     (CVE-2016-3672)

  - sg_start_req: make sure that there's not too many     elements in iovec (Al Viro) [Orabug: 25490377]     (CVE-2015-5707)

  - tcp: take care of truncations done by sk_filter (Eric     Dumazet) [Orabug: 25507232] (CVE-2016-8645)

  - rose: limit sk_filter trim to payload (Willem de Bruijn)     [Orabug: 25507232] (CVE-2016-8645)

  - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer     (Dan Carpenter) [Orabug: 25507330] (CVE-2016-7425)

  - x86: bpf_jit: fix compilation of large bpf programs     (Alexei Starovoitov) [Orabug: 25507375] (CVE-2015-4700)

  - net: fix a kernel infoleak in x25 module (Kangjie Lu)     [Orabug: 25512417] (CVE-2016-4580)

  - USB: digi_acceleport: do sanity checking for the number     of ports (Oliver Neukum) [Orabug: 25512472]     (CVE-2016-3140)

  - net/llc: avoid BUG_ON in skb_orphan (Eric Dumazet)     [Orabug: 25682437] (CVE-2017-6345)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1190 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * A flaw was found in the implementation of the fill buffer, a mechanism used by modern CPUs when a     cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page     fault, the execution will continue speculatively with incorrect data from the fill buffer while the data     is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
    (CVE-2018-12130)

    * Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of     writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore     Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into     these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed     processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use     this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)

    * Microprocessors use a load port subcomponent to perform load operations from memory or IO. During     a load operation, the load port receives data from the memory or IO subsystem and then provides the data     to the CPU registers and operations in the CPUs pipelines. Stale load operations results are stored in     the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an     attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a     timing side-channel. (CVE-2018-12127)

    * Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated     user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)

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

    * kernel: crypto: privilege escalation in skcipher_recvmsg function (CVE-2017-13215)

    * Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation (CVE-2017-16939)

    * kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c     (CVE-2018-1068)

    * kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)

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

    * kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message (CVE-2017-11600)

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

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

    * Kernel: FPU state information leakage via lazy FPU restore (CVE-2018-3665)

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

    Bug Fix(es):

    * update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1692711)

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 remote OracleVM system is missing necessary patches to address critical security updates :

  - Revert 'x86/mm: Expand the exception table logic to     allow new handling options' (Brian Maly) [Orabug:
    25790387] (CVE-2016-9644)

  - Revert 'fix minor infoleak in get_user_ex' (Brian Maly)     [Orabug: 25790387] (CVE-2016-9644)

  - x86/mm: Expand the exception table logic to allow new     handling options (Tony Luck) [Orabug: 25790387]     (CVE-2016-9644)

  - rebuild bumping release

  - net: ping: check minimum size on ICMP header length     (Kees Cook) [Orabug: 25766898] (CVE-2016-8399)     (CVE-2016-8399)

  - sg_write/bsg_write is not fit to be called under     KERNEL_DS (Al Viro) [Orabug: 25765436] (CVE-2016-10088)

  - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter     chang) [Orabug: 25751984] (CVE-2017-7187)

  - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander     Popov) [Orabug: 25696677] (CVE-2017-2636)

  - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)     [Orabug: 25696677] (CVE-2017-2636)

  - If Slot Status indicates changes in both Data Link Layer     Status and Presence Detect, prioritize the Link status     change. (Jack Vogel) 

  - PCI: pciehp: Leave power indicator on when enabling     already-enabled slot (Ashok Raj) [Orabug: 25353783]

  - firewire: net: guard against rx buffer overflows (Stefan     Richter) [Orabug: 25451520] (CVE-2016-8633)

  - usbnet: cleanup after bind in probe (Oliver Neukum)     [Orabug: 25463898] (CVE-2016-3951)

  - cdc_ncm: do not call usbnet_link_change from     cdc_ncm_bind (Bj&oslash rn Mork) [Orabug: 25463898]     (CVE-2016-3951)

  - cdc_ncm: Add support for moving NDP to end of NCM frame     (Enrico Mioso) [Orabug: 25463898] (CVE-2016-3951)

  - x86/mm/32: Enable full randomization on i386 and X86_32     (Hector Marco-Gisbert) [Orabug: 25463918]     (CVE-2016-3672)

  - kvm: fix page struct leak in handle_vmon (Paolo Bonzini)     [Orabug: 25507133] (CVE-2017-2596)

  - crypto: mcryptd - Check mcryptd algorithm compatibility     (tim) [Orabug: 25507153] (CVE-2016-10147)

  - kvm: nVMX: Allow L1 to intercept software exceptions     (#BP and #OF) (Jim Mattson) [Orabug: 25507188]     (CVE-2016-9588)

  - KVM: x86: drop error recovery in em_jmp_far and     em_ret_far (Radim Kr&#x10D m&aacute &#x159 ) [Orabug:
    25507213] (CVE-2016-9756)

  - tcp: take care of truncations done by sk_filter (Eric     Dumazet) [Orabug: 25507226] (CVE-2016-8645)

  - rose: limit sk_filter trim to payload (Willem de Bruijn)     [Orabug: 25507226] (CVE-2016-8645)

  - tipc: check minimum bearer MTU (Michal Kube&#x10D ek)     [Orabug: 25507239] (CVE-2016-8632) (CVE-2016-8632)

  - fix minor infoleak in get_user_ex (Al Viro) [Orabug:
    25507269] (CVE-2016-9178)

  - scsi: arcmsr: Simplify user_len checking (Borislav     Petkov) [Orabug: 25507319] (CVE-2016-7425)

  - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer     (Dan Carpenter) [Orabug: 25507319] (CVE-2016-7425)

  - tmpfs: clear S_ISGID when setting posix ACLs (Gu Zheng)     [Orabug: 25507341] (CVE-2016-7097) (CVE-2016-7097)

  - posix_acl: Clear SGID bit when setting file permissions     (Jan Kara) [Orabug: 25507341] (CVE-2016-7097)     (CVE-2016-7097)

  - ext2: convert to mbcache2 (Jan Kara) [Orabug: 25512366]     (CVE-2015-8952)

  - ext4: convert to mbcache2 (Jan Kara) [Orabug: 25512366]     (CVE-2015-8952)

  - mbcache2: reimplement mbcache (Jan Kara) [Orabug:
    25512366] (CVE-2015-8952)

  - USB: digi_acceleport: do sanity checking for the number     of ports (Oliver Neukum) [Orabug: 25512466]     (CVE-2016-3140)

  - net/llc: avoid BUG_ON in skb_orphan (Eric Dumazet)     [Orabug: 25682419] (CVE-2017-6345)

  - net/mlx4_core: Disallow creation of RAW QPs on a VF (Eli     Cohen) 

  - ipv4: keep skb->dst around in presence of IP options     (Eric Dumazet) [Orabug: 25698300] (CVE-2017-5970)

  - perf/core: Fix concurrent sys_perf_event_open vs.
    'move_group' race (Peter Zijlstra) [Orabug: 25698751]     (CVE-2017-6001)

  - ip6_gre: fix ip6gre_err invalid reads (Eric Dumazet)     [Orabug: 25699015] (CVE-2017-5897)

  - mpt3sas: Don't spam logs if logging level is 0 (Johannes     Thumshirn) 

  - xen-netfront: cast grant table reference first to type     int (Dongli Zhang)

  - xen-netfront: do not cast grant table reference to     signed short (Dongli Zhang)

The SUSE Linux Enterprise 12 GA LTSS kernel was updated to 3.12.61 to receive various security and bugfixes. The following feature was implemented :

  - The ext2 filesystem got reenabled and supported to allow     support for 'XIP' (Execute In Place) (FATE#320805). The     following security bugs were fixed :

  - CVE-2017-5551: The tmpfs filesystem implementation in     the Linux kernel preserved the setgid bit during a     setxattr call, which allowed local users to gain group     privileges by leveraging the existence of a setgid     program with restrictions on execute permissions     (bsc#1021258).

  - CVE-2016-7097: The filesystem implementation in the     Linux kernel preserved the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions (bnc#995968).

  - CVE-2017-2583: A Linux kernel built with the     Kernel-based Virtual Machine (CONFIG_KVM) support was     vulnerable to an incorrect segment selector(SS) value     error. A user/process inside guest could have used this     flaw to crash the guest resulting in DoS or potentially     escalate their privileges inside guest. (bsc#1020602).

  - CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux     kernel allowed local users to obtain sensitive     information from kernel memory or cause a denial of     service (use-after-free) via a crafted application that     leverages instruction emulation for fxrstor, fxsave,     sgdt, and sidt (bnc#1019851).

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device, related to block/bsg.c and drivers/scsi/sg.c.
    NOTE: this vulnerability exists because of an incomplete     fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2016-8645: The TCP stack in the Linux kernel     mishandled skb truncation, which allowed local users to     cause a denial of service (system crash) via a crafted     application that made sendto system calls, related to     net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c     (bnc#1009969).

  - CVE-2016-8399: An elevation of privilege vulnerability     in the kernel networking subsystem could enable a local     malicious application to execute arbitrary code within     the context of the kernel. This issue is rated as     Moderate because it first requires compromising a     privileged process and current compiler optimizations     restrict access to the vulnerable code. Product:
    Android. Versions: Kernel-3.10, Kernel-3.18. Android ID:
    A-31349935 (bnc#1014746).

  - CVE-2016-9806: Race condition in the netlink_dump     function in net/netlink/af_netlink.c in the Linux kernel     allowed local users to cause a denial of service (double     free) or possibly have unspecified other impact via a     crafted application that made sendmsg system calls,     leading to a free operation associated with a new dump     that started earlier than anticipated (bnc#1013540).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option     (bnc#1013531).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-7913: The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     allowed 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 (bnc#1010478).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2015-8963: Race condition in kernel/events/core.c in     the Linux kernel allowed local users to gain privileges     or cause a denial of service (use-after-free) by     leveraging incorrect handling of an swevent data     structure during a CPU unplug operation (bnc#1010502).

  - CVE-2016-7914: The assoc_array_insert_into_terminal_node     function in lib/assoc_array.c in the Linux kernel did     not check whether a slot is a leaf, which allowed local     users to obtain sensitive information from kernel memory     or cause a denial of service (invalid pointer     dereference and out-of-bounds read) via an application     that uses associative-array data structures, as     demonstrated by the keyutils test suite (bnc#1010475).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel allowed remote attackers to execute arbitrary     code via crafted fragmented packets (bnc#1008833).

  - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux     kernel allowed local users to bypass integer overflow     checks, and cause a denial of service (memory     corruption) or have unspecified other impact, by     leveraging access to a vfio PCI device file for a     VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine     confusion bug (bnc#1007197).

  - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the     Linux kernel misused the kzalloc function, which allowed     local users to cause a denial of service (integer     overflow) or have unspecified other impact by leveraging     access to a vfio PCI device file (bnc#1007197).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux kernel uses an     incorrect buffer size for certain timeout data, which     allowed local users to cause a denial of service (stack     memory corruption and panic) by reading the /proc/keys     file (bnc#1004517).

  - CVE-2015-8956: The rfcomm_sock_bind function in     net/bluetooth/rfcomm/sock.c in the Linux kernel allowed     local users to obtain sensitive information or cause a     denial of service (NULL pointer dereference) via vectors     involving a bind system call on a Bluetooth RFCOMM     socket (bnc#1003925).

  - CVE-2016-8658: Stack-based buffer overflow in the     brcmf_cfg80211_start_ap function in     drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg8021     1.c in the Linux kernel allowed local users to cause a     denial of service (system crash) or possibly have     unspecified other impact via a long SSID Information     Element in a command to a Netlink socket (bnc#1004462).

  - CVE-2016-7425: The arcmsr_iop_message_xfer function in     drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel did     not restrict a certain length field, which allowed local     users to gain privileges or cause a denial of service     (heap-based buffer overflow) via an     ARCMSR_MESSAGE_WRITE_WQBUFFER control code (bnc#999932).

  - CVE-2016-6327: drivers/infiniband/ulp/srpt/ib_srpt.c in     the Linux kernel allowed local users to cause a denial     of service (NULL pointer dereference and system crash)     by using an ABORT_TASK command to abort a device write     operation (bnc#994748).

  - CVE-2016-6828: The tcp_check_send_head function in     include/net/tcp.h in the Linux kernel did not properly     maintain certain SACK state after a failed data copy,     which allowed local users to cause a denial of service     (tcp_xmit_retransmit_queue use-after-free and system     crash) via a crafted SACK option (bnc#994296).

  - CVE-2016-5696: net/ipv4/tcp_input.c in the Linux kernel     did not properly determine the rate of challenge ACK     segments, which made it easier for remote attackers to     hijack TCP sessions via a blind in-window attack     (bnc#989152).

  - CVE-2016-6130: Race condition in the sclp_ctl_ioctl_sccb     function in drivers/s390/char/sclp_ctl.c in the Linux     kernel allowed local users to obtain sensitive     information from kernel memory by changing a certain     length value, aka a 'double fetch' vulnerability     (bnc#987542).

  - CVE-2016-6480: Race condition in the ioctl_send_fib     function in drivers/scsi/aacraid/commctrl.c in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds access or system crash) by changing a     certain size value, aka a 'double fetch' vulnerability     (bnc#991608).

  - CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt     implementation in the netfilter subsystem in the Linux     kernel allowed local users to cause a denial of service     (out-of-bounds read) or possibly obtain sensitive     information from kernel heap memory by leveraging     in-container root access to provide a crafted offset     value that leads to crossing a ruleset blob boundary     (bnc#986362 bnc#986365).

  - CVE-2016-5828: The start_thread function in     arch/powerpc/kernel/process.c in the Linux kernel on     powerpc platforms mishandled transactional state, which     allowed local users to cause a denial of service     (invalid process state or TM Bad Thing exception, and     system crash) or possibly have unspecified other impact     by starting and suspending a transaction before an exec     system call (bnc#986569).

  - CVE-2014-9904: The snd_compress_check_input function in     sound/core/compress_offload.c in the ALSA subsystem in     the Linux kernel did not properly check for an integer     overflow, which allowed local users to cause a denial of     service (insufficient memory allocation) or possibly     have unspecified other impact via a crafted     SNDRV_COMPRESS_SET_PARAMS ioctl call (bnc#986811).

  - CVE-2016-5829: Multiple heap-based buffer overflows in     the hiddev_ioctl_usage function in     drivers/hid/usbhid/hiddev.c in the Linux kernel allow     local users to cause a denial of service or possibly     have unspecified other impact via a crafted (1)     HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call     (bnc#986572).

  - CVE-2016-4470: The key_reject_and_link function in     security/keys/key.c in the Linux kernel did not ensure     that a certain data structure is initialized, which     allowed local users to cause a denial of service (system     crash) via vectors involving a crafted keyctl request2     command (bnc#984755).

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 OracleVM system is missing necessary patches to address critical security updates :

  - nfsd: stricter decoding of write-like NFSv2/v3 ops (J.
    Bruce Fields) [Orabug: 25986995] (CVE-2017-7895)

  - ocfs2/o2net: o2net_listen_data_ready should do nothing     if socket state is not TCP_LISTEN (Tariq Saeed) [Orabug:
    25510857]

  - IB/CORE: sync the resouce access in fmr_pool (Wengang     Wang) [Orabug: 23750748]

  - ipv6: Skip XFRM lookup if dst_entry in socket cache is     valid (Jakub Sitnicki) [Orabug: 25534688]

  - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug:
    25549845]

  - ksplice: add sysctls for determining Ksplice features.
    (Jamie Iles) 

  - signal: protect SIGNAL_UNKILLABLE from unintentional     clearing. (Jamie Iles) [Orabug: 25549845]

  - KVM: x86: fix emulation of 'MOV SS, null selector'     (Paolo Bonzini) [Orabug: 25719676] (CVE-2017-2583)     (CVE-2017-2583)

  - sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Marcelo     Ricardo Leitner) [Orabug: 25719811] (CVE-2017-5986)

  - tcp: avoid infinite loop in tcp_splice_read (Eric     Dumazet) [Orabug: 25720815] (CVE-2017-6214)

  - USB: visor: fix null-deref at probe (Johan Hovold)     [Orabug: 25796604] (CVE-2016-2782)

  - ipc/shm: Fix shmat mmap nil-page protection (Davidlohr     Bueso) [Orabug: 25797014] (CVE-2017-5669)

  - vhost: actually track log eventfd file     (Marc-Andr&eacute  Lureau) [Orabug: 25797056]     (CVE-2015-6252)

  - xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size     harder (Andy Whitcroft) [Orabug: 25814664]     (CVE-2017-7184)

  - xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL     replay_window (Andy Whitcroft) [Orabug: 25814664]     (CVE-2017-7184)

  - KEYS: Remove key_type::match in favour of overriding     default by match_preparse (David Howells) [Orabug:
    25823965] (CVE-2017-2647) (CVE-2017-2647)

  - USB: whiteheat: fix potential null-deref at probe (Johan     Hovold) [Orabug: 25825107] (CVE-2015-5257)

  - RDS: fix race condition when sending a message on     unbound socket (Quentin Casasnovas) [Orabug: 25871048]     (CVE-2015-6937) (CVE-2015-6937)

  - udf: Check path length when reading symlink (Jan Kara)     [Orabug: 25871104] (CVE-2015-9731)

  - udf: Treat symlink component of type 2 as / (Jan Kara)     [Orabug: 25871104] (CVE-2015-9731)

  - udp: properly support MSG_PEEK with truncated buffers     (Eric Dumazet) [Orabug: 25874741] (CVE-2016-10229)

  - block: fix use-after-free in seq file (Vegard Nossum)     [Orabug: 25877531] (CVE-2016-7910)

  - RHEL: complement upstream workaround for CVE-2016-10142.
    (Quentin Casasnovas) [Orabug: 25765786] (CVE-2016-10142)     (CVE-2016-10142)

  - net: ping: check minimum size on ICMP header length     (Kees Cook) [Orabug: 25766914] (CVE-2016-8399)

  - ipv6: stop sending PTB packets for MTU < 1280 (Hagen     Paul Pfeifer) [Orabug: 25765786] (CVE-2016-10142)

  - sg_write/bsg_write is not fit to be called under     KERNEL_DS (Al Viro) [Orabug: 25765448] (CVE-2016-10088)

  - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter     chang) [Orabug: 25752011] (CVE-2017-7187)

  - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander     Popov) [Orabug: 25696689] (CVE-2017-2636)

  - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)     [Orabug: 25696689] (CVE-2017-2636)

  - drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc     (Fabian Frederick) [Orabug: 25696689] (CVE-2017-2636)

  - list: introduce list_first_entry_or_null (Jiri Pirko)     [Orabug: 25696689] (CVE-2017-2636)

  - firewire: net: guard against rx buffer overflows (Stefan     Richter) [Orabug: 25451538] (CVE-2016-8633)

  - x86/mm/32: Enable full randomization on i386 and X86_32     (Hector Marco-Gisbert) [Orabug: 25463929]     (CVE-2016-3672)

  - x86 get_unmapped_area: Access mmap_legacy_base through     mm_struct member (Radu Caragea) [Orabug: 25463929]     (CVE-2016-3672)

  - sg_start_req: make sure that there's not too many     elements in iovec (Al Viro) [Orabug: 25490377]     (CVE-2015-5707)

  - tcp: take care of truncations done by sk_filter (Eric     Dumazet) [Orabug: 25507232] (CVE-2016-8645)

  - rose: limit sk_filter trim to payload (Willem de Bruijn)     [Orabug: 25507232] (CVE-2016-8645)

  - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer     (Dan Carpenter) [Orabug: 25507330] (CVE-2016-7425)

  - x86: bpf_jit: fix compilation of large bpf programs     (Alexei Starovoitov) [Orabug: 25507375] (CVE-2015-4700)

  - net: fix a kernel infoleak in x25 module (Kangjie Lu)     [Orabug: 25512417] (CVE-2016-4580)

  - USB: digi_acceleport: do sanity checking for the number     of ports (Oliver Neukum) [Orabug: 25512472]     (CVE-2016-3140)

  - net/llc: avoid BUG_ON in skb_orphan (Eric Dumazet)     [Orabug: 25682437] (CVE-2017-6345)

  - dccp: fix freeing skb too early for IPV6_RECVPKTINFO     (Andrey Konovalov) [Orabug: 25598277] (CVE-2017-6074)

  - vfs: read file_handle only once in handle_to_path (Sasha     Levin) [Orabug: 25388709] (CVE-2015-1420)

  - crypto: algif_hash - Only export and import on sockets     with data (Herbert Xu) [Orabug: 25417807]

  - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)     [Orabug: 25462763] (CVE-2016-4482)

  - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462811]     (CVE-2016-4485)

  - af_unix: Guard against other == sk in unix_dgram_sendmsg     (Rainer Weikusat) [Orabug: 25464000] (CVE-2013-7446)

  - unix: avoid use-after-free in ep_remove_wait_queue     (Rainer Weikusat) [Orabug: 25464000] (CVE-2013-7446)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - drivers/firewire/net.c in the Linux kernel before 4.8.7, in certain unusual hardware configurations,     allows remote attackers to execute arbitrary code via crafted fragmented packets. (CVE-2016-8633)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003327 advisory.

    drivers/firewire/net.c in the Linux kernel before 4.8.7, in certain unusual hardware configurations,     allows remote attackers to execute arbitrary code via crafted fragmented packets.

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

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

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3161-2 advisory.

    USN-3161-1 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.

    Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the     Linux kernel. A local attacker could use this to expose sensitive information (kernel memory).
    (CVE-2015-8964)

    It was discovered that the Video For Linux Two (v4l2) implementation in the Linux kernel did not properly     handle multiple planes when processing a VIDIOC_DQBUF ioctl(). A local attacker could use this to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-4568)

    CAI Qian discovered that shared bind mounts in a mount namespace exponentially added entries without     restriction to the Linux kernel's mount table. A local attacker could use this to cause a denial of     service (system crash). (CVE-2016-6213)

    It was discovered that the KVM implementation for x86/x86_64 in the Linux kernel could dereference a null     pointer. An attacker in a guest virtual machine could use this to cause a denial of service (system crash)     in the KVM host. (CVE-2016-8630)

    Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation in the Linux kernel contained a     buffer overflow when handling fragmented packets. A remote attacker could use this to possibly execute     arbitrary code with administrative privileges. (CVE-2016-8633)

    Marco Grassi discovered that the TCP implementation in the Linux kernel mishandles socket buffer (skb)     truncation. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-8645)

    Andrey Konovalov discovered that the SCTP implementation in the Linux kernel improperly handled validation     of incoming data. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2016-9555)

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.

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.69 to receive various security and bugfixes. The following security bugs were fixed :

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2015-8963: Race condition in kernel/events/core.c in     the Linux kernel allowed local users to gain privileges     or cause a denial of service (use-after-free) by     leveraging incorrect handling of an swevent data     structure during a CPU unplug operation (bnc#1010502).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-10088: The sg implementation in the Linux     kernel did not properly restrict write operations in     situations where the KERNEL_DS option is set, which     allowed local users to read or write to arbitrary kernel     memory locations or cause a denial of service     (use-after-free) by leveraging access to a /dev/sg     device, related to block/bsg.c and drivers/scsi/sg.c.
    NOTE: this vulnerability exists because of an incomplete     fix for CVE-2016-9576 (bnc#1017710).

  - CVE-2016-7910: Use-after-free vulnerability in the     disk_seqf_stop function in block/genhd.c in the Linux     kernel allowed local users to gain privileges by     leveraging the execution of a certain stop operation     even if the corresponding start operation had failed     (bnc#1010716).

  - CVE-2016-7911: Race condition in the get_task_ioprio     function in block/ioprio.c in the Linux kernel allowed     local users to gain privileges or cause a denial of     service (use-after-free) via a crafted ioprio_get system     call (bnc#1010711).

  - CVE-2016-7913: The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     allowed 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 (bnc#1010478).

  - CVE-2016-7914: The assoc_array_insert_into_terminal_node     function in lib/assoc_array.c in the Linux kernel did     not check whether a slot is a leaf, which allowed local     users to obtain sensitive information from kernel memory     or cause a denial of service (invalid pointer     dereference and out-of-bounds read) via an application     that uses associative-array data structures, as     demonstrated by the keyutils test suite (bnc#1010475).

  - CVE-2016-8399: An elevation of privilege vulnerability     in the kernel networking subsystem could enable a local     malicious application to execute arbitrary code within     the context of the kernel. This issue is rated as     Moderate because it first requires compromising a     privileged process and current compiler optimizations     restrict access to the vulnerable code. Product:
    Android. Versions: Kernel-3.10, Kernel-3.18. Android ID:
    A-31349935 (bnc#1014746).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel, in certain unusual hardware configurations,     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

  - CVE-2016-8645: The TCP stack in the Linux kernel     mishandled skb truncation, which allowed local users to     cause a denial of service (system crash) via a crafted     application that made sendto system calls, related to     net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c     (bnc#1009969).

  - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux     kernel allowed local users to bypass integer overflow     checks, and cause a denial of service (memory     corruption) or have unspecified other impact, by     leveraging access to a vfio PCI device file for a     VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine     confusion bug' (bnc#1007197).

  - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the     Linux kernel misuses the kzalloc function, which allowed     local users to cause a denial of service (integer     overflow) or have unspecified other impact by leveraging     access to a vfio PCI device file (bnc#1007197).

  - CVE-2016-9756: arch/x86/kvm/emulate.c in the Linux     kernel did not properly initialize Code Segment (CS) in     certain error cases, which allowed local users to obtain     sensitive information from kernel stack memory via a     crafted application (bnc#1013038).

  - CVE-2016-9793: The sock_setsockopt function in     net/core/sock.c in the Linux kernel mishandled negative     values of sk_sndbuf and sk_rcvbuf, which allowed local     users to cause a denial of service (memory corruption     and system crash) or possibly have unspecified other     impact by leveraging the CAP_NET_ADMIN capability for a     crafted setsockopt system call with the (1)     SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option (bnc#1013531     1013542).

  - CVE-2016-9806: Race condition in the netlink_dump     function in net/netlink/af_netlink.c in the Linux kernel     allowed local users to cause a denial of service (double     free) or possibly have unspecified other impact via a     crafted application that made sendmsg system calls,     leading to a free operation associated with a new dump     that started earlier than anticipated (bnc#1013540     1017589).

  - CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux     kernel allowed local users to obtain sensitive     information from kernel memory or cause a denial of     service (use-after-free) via a crafted application that     leverages instruction emulation for fxrstor, fxsave,     sgdt, and sidt (bsc#1019851).

  - CVE-2017-2583: Fixed broken emulation of 'MOV SS, null     selector' (bsc#1020602).

  - CVE-2017-5551: Clear SGID bit when setting file     permissions on tmpfs (bsc#1021258).

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 Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-1062 advisory.

    - [acpi] sbshc: remove raw pointer from printk() message (Baoquan He) [1547009] {CVE-2018-5750}
    - [media] v4l2-compat-ioctl32.c: refactor compat ioctl32 logic fixup (Jarod Wilson) [1548430]     {CVE-2017-13166}
    - [kernel] futex: Prevent overflow by strengthen input validation (Joe Lawrence) [1547585] {CVE-2018-6927}
    - [media] v4l2-compat-ioctl32.c: refactor compat ioctl32 logic (Jarod Wilson) [1548430] {CVE-2017-13166}
    - [sound] alsa: seq: Fix use-after-free at creating a port (CVE-2017-15265) (Jaroslav Kysela) [1503381]     {CVE-2017-15265}
    - [x86] kvm: fix singlestepping over syscall (Paolo Bonzini) [1464481] {CVE-2017-7518}
    - [net] netfilter: xt_TCPMSS: add more sanity tests on tcph->doff (Florian Westphal) [1543088]     {CVE-2017-18017}
    - [sound] alsa: seq: Make ioctls race-free (CVE-2018-1000004) (Jaroslav Kysela) [1537203]     {CVE-2018-1000004}
    - [x86] mm: Fix use-after-free of ldt_struct (Oleg Nesterov) [1543352] {CVE-2017-17053}
    - [net] netlink: Add netns check on taps (William Townsend) [1538738] {CVE-2017-17449}
    - [net] netfilter: xt_osf: Add missing permission checks (Florian Westphal) [1539230] {CVE-2017-17448}
    - [net] netfilter: nfnetlink_cthelper: Add missing permission checks (Florian Westphal) [1539230]     {CVE-2017-17448}
    - [powerpc] kvm: book3s: Provide information about hardware/firmware CVE workarounds (Serhii Popovych)     [1532077] {CVE-2017-5754}
    - [net] Fix double free and memory corruption in get_net_ns_by_id() (Aristeu Rozanski) [1531551]     {CVE-2017-15129}
    - [media] xc2028: avoid use after free (Torez Smith) [1402893] {CVE-2016-7913}

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.

The openSUSE Leap 42.1 kernel was updated to 4.1.36 to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2016-8655: A race condition in the af_packet     packet_set_ring function could be used by local     attackers to crash the kernel or gain privileges     (bsc#1012754).

  - CVE-2016-9794: A use-after-free in ALSA pcm could lead     to crashes or allowed local users to potentially gain     privileges (bsc#1013533).

  - CVE-2015-8962: Double free vulnerability in the     sg_common_write function in drivers/scsi/sg.c in the     Linux kernel allowed local users to gain privileges or     cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call     (bnc#1010501).

  - CVE-2016-9178: The __get_user_asm_ex macro in     arch/x86/include/asm/uaccess.h in the Linux kernel did     not initialize a certain integer variable, which allowed     local users to obtain sensitive information from kernel     stack memory by triggering failure of a get_user_ex call     (bnc#1008650).

  - CVE-2016-7913: The xc2028_set_config function in     drivers/media/tuners/tuner-xc2028.c in the Linux kernel     allowed 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 (bnc#1010478).

  - CVE-2016-9555: The sctp_sf_ootb function in     net/sctp/sm_statefuns.c in the Linux kernel lacks     chunk-length checking for the first chunk, which allowed     remote attackers to cause a denial of service     (out-of-bounds slab access) or possibly have unspecified     other impact via crafted SCTP data (bnc#1011685).

  - CVE-2015-8963: Race condition in kernel/events/core.c in     the Linux kernel allowed local users to gain privileges     or cause a denial of service (use-after-free) by     leveraging incorrect handling of an swevent data     structure during a CPU unplug operation (bnc#1010502).

  - CVE-2015-8964: The tty_set_termios_ldisc function in     drivers/tty/tty_ldisc.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory by reading a tty data structure (bnc#1010507).

  - CVE-2016-8646: The hash_accept function in     crypto/algif_hash.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) by attempting     to trigger use of in-kernel hash algorithms for a socket     that has received zero bytes of data (bnc#1010150).

  - CVE-2016-8633: drivers/firewire/net.c in the Linux     kernel in certain unusual hardware configurations,     allowed remote attackers to execute arbitrary code via     crafted fragmented packets (bnc#1008833).

  - CVE-2016-8630: The x86_decode_insn function in     arch/x86/kvm/emulate.c in the Linux kernel, when KVM is     enabled, allowed local users to cause a denial of     service (host OS crash) via a certain use of a ModR/M     byte in an undefined instruction (bnc#1009222).

  - CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux     kernel allowed local users to bypass integer overflow     checks, and cause a denial of service (memory     corruption) or have unspecified other impact, by     leveraging access to a vfio PCI device file for a     VFIO_DEVICE_SET_IRQS ioctl call, aka a 'state machine     confusion bug (bnc#1007197).

  - CVE-2016-9084: drivers/vfio/pci/vfio_pci_intrs.c in the     Linux kernel misuses the kzalloc function, which allowed     local users to cause a denial of service (integer     overflow) or have unspecified other impact by leveraging     access to a vfio PCI device file (bnc#1007197).

  - CVE-2016-7042: The proc_keys_show function in     security/keys/proc.c in the Linux kernel through 4.8.2,     when the GNU Compiler Collection (gcc) stack protector     is enabled, uses an incorrect buffer size for certain     timeout data, which allowed local users to cause a     denial of service (stack memory corruption and panic) by     reading the /proc/keys file (bnc#1004517).

  - CVE-2016-7097: The filesystem implementation in the     Linux kernel preserves the setgid bit during a setxattr     call, which allowed local users to gain group privileges     by leveraging the existence of a setgid program with     restrictions on execute permissions (bnc#995968).

  - CVE-2015-8956: The rfcomm_sock_bind function in     net/bluetooth/rfcomm/sock.c in the Linux kernel allowed     local users to obtain sensitive information or cause a     denial of service (NULL pointer dereference) via vectors     involving a bind system call on a Bluetooth RFCOMM     socket (bnc#1003925).

The following non-security bugs were fixed :

  - ata: ahci_xgene: dereferencing uninitialized pointer in     probe (bsc#1006580).

  - blacklist.conf: add some commits (bsc#1006580)

  - bna: Add synchronization for tx ring (bsc#993739).

  - bonding: set carrier off for devices created through     netlink (bsc#999577).

  - btrfs: deal with duplicates during extent_map insertion     in btrfs_get_extent (bsc#1001171).

  - btrfs: deal with existing encompassing extent map in     btrfs_get_extent() (bsc#1001171).

  - btrfs: fix extent tree corruption due to relocation     (bsc#990384).

  - btrfs: fix races on root_log_ctx lists (bsc#1007653).

  - ext4: fix data exposure after a crash (bsc#1012876).

  - ext4: fix reference counting bug on block allocation     error (bsc#1012876).

  - gre: Disable segmentation offloads w/ CSUM and we are     encapsulated via FOU (bsc#1001486).

  - gro: Allow tunnel stacking in the case of FOU/GUE     (bsc#1001486).

  - ipv6: send NEWLINK on RA managed/otherconf changes     (bsc#934067).

  - ipv6: send only one NEWLINK when RA causes changes     (bsc#934067).

  - isofs: Do not return EACCES for unknown filesystems     (bsc#1012876).

  - jbd2: fix checkpoint list cleanup (bsc#1012876).

  - jbd2: Fix unreclaimed pages after truncate in     data=journal mode (bsc#1010909).

  - locking/static_key: Fix concurrent static_key_slow_inc()     (bsc#1006580).

  - mmc: Fix kabi breakage of mmc-block in 4.1.36     (stable-4.1.36).

  - posix_acl: Added fix for f2fs.

  - Revert 'kbuild: add -fno-PIE' (stable-4.1.36).

  - Revert 'x86/mm: Expand the exception table logic to     allow new handling options' (stable-4.1.36).

  - tunnels: Remove encapsulation offloads on decap     (bsc#1001486).

  - usbhid: add ATEN CS962 to list of quirky devices     (bsc#1007615).

  - vmxnet3: Wake queue from reset work (bsc#999907).

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 :

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
96188	Debian DLA-772-1 : linux security update	Nessus	Debian Local Security Checks	2017/1/3	2026/1/7	critical
97097	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0437-1)	Nessus	SuSE Local Security Checks	2017/2/10	2026/1/1	critical
108997	RHEL 7 : kernel (RHSA-2018:1062)	Nessus	Red Hat Local Security Checks	2018/4/11	2026/1/13	critical
287228	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003400)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/16	medium
99161	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2017-3535)	Nessus	Oracle Linux Local Security Checks	2017/4/3	2026/2/9	high
99164	OracleVM 3.2 : Unbreakable / etc (OVMSA-2017-0058)	Nessus	OracleVM Local Security Checks	2017/4/3	2025/12/26	high
125192	RHEL 6 : kernel-rt (RHSA-2019:1190)	Nessus	Red Hat Local Security Checks	2019/5/16	2024/11/6	high
99162	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0056)	Nessus	OracleVM Local Security Checks	2017/4/3	2025/12/26	critical
97205	SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0471-1)	Nessus	SuSE Local Security Checks	2017/2/16	2026/1/1	high
100238	OracleVM 3.2 : Unbreakable / etc (OVMSA-2017-0106)	Nessus	OracleVM Local Security Checks	2017/5/17	2025/12/18	critical
219849	Linux Distros Unpatched Vulnerability : CVE-2016-8633	Nessus	Misc.	2025/3/4	2025/9/30	medium
287002	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003327)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/16	medium
95996	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3161-2)	Nessus	Ubuntu Local Security Checks	2016/12/21	2024/8/27	critical
97189	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0464-1)	Nessus	SuSE Local Security Checks	2017/2/15	2026/1/1	high
109113	Oracle Linux 7 : kernel (ELSA-2018-1062)	Nessus	Oracle Linux Local Security Checks	2018/4/18	2026/2/9	critical
95702	openSUSE Security Update : the Linux Kernel (openSUSE-2016-1428)	Nessus	SuSE Local Security Checks	2016/12/12	2026/1/14	critical
109449	Scientific Linux Security Update : kernel on SL7.x x86_64 (20180410) (Meltdown)	Nessus	Scientific Linux Local Security Checks	2018/5/1	2026/1/13	critical

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