The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:1854 advisory.

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

    Security Fix(es):

    * An industry-wide issue was found in the way many modern microprocessor designs have implemented     speculative execution of Load & Store instructions (a commonly used performance optimization). It relies     on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact     that memory read from address to which a recent memory write has occurred may see an older value and     subsequently cause an update 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 read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639, PowerPC)

    * kernel: net/packet: overflow in check for priv area size (CVE-2017-7308)

    * kernel: AIO interface didn't use rw_verify_area() for checking mandatory locking on files and size of     access (CVE-2012-6701)

    * kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830)

    * kernel: Null pointer dereference via keyctl (CVE-2016-8650)

    * kernel: ping socket / AF_LLC connect() sin_family race (CVE-2017-2671)

    * kernel: Race condition between multiple sys_perf_event_open() calls (CVE-2017-6001)

    * kernel: Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c     (CVE-2017-7616)

    * kernel: mm subsystem does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism     (CVE-2017-7889)

    * kernel: Double free in the inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c     (CVE-2017-8890)

    * kernel: net: sctp_v6_create_accept_sk function mishandles inheritance (CVE-2017-9075)

    * kernel: net: IPv6 DCCP implementation mishandles inheritance (CVE-2017-9076)

    * kernel: net: tcp_v6_syn_recv_sock function mishandles inheritance (CVE-2017-9077)

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

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

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

    * kernel: a null pointer dereference in net/dccp/output.c:dccp_write_xmit() leads to a system crash     (CVE-2018-1130)

    * kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows     denial of service (CVE-2018-5803)

    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 Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project     Zero) for reporting CVE-2018-3639; Vitaly Mayatskih for reporting CVE-2017-12190; and Evgenii Shatokhin     (Virtuozzo Team) for reporting CVE-2018-1130. The CVE-2017-15121 issue was discovered by Miklos Szeredi     (Red Hat).

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes     and Red Hat Enterprise Linux 6.10 Technical 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-2026-003000 advisory.

    A non-privileged user is able to mount a fuse filesystem on RHEL 6 or 7 and crash a system if an     application punches a hole in a file that does not end aligned to a page boundary.

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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0676 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):

    * 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: Incorrect handling in arch/x86/include/asm/mmu_context.h:init_new_context function allowing use-     after-free (CVE-2017-17053, 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: unlimiting the stack disables ASLR (CVE-2016-3672, Low)

    * kernel: Missing permission check in move_pages system call (CVE-2017-14140, Low)

    * kernel: Null pointer dereference in rngapi_reset function (CVE-2017-15116, Low)

    * kernel: Improper error handling of VM_SHARED hugetlbfs mapping in mm/hugetlb.c (CVE-2017-15127, 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 Eyal Itkin for reporting CVE-2016-8633; 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).

    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.

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.

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

  - The function hso_get_config_data in     drivers/net/usb/hso.c in the Linux kernel through     4.19.8 reads if_num from the USB device (as a u8) and     uses it to index a small array, resulting in an object     out-of-bounds (OOB) read that potentially allows     arbitrary read in the kernel address     space.(CVE-2018-19985)

  - 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-2017-5754 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. Note:
    CVE-2017-5754 affects Intel x86-64 microprocessors. AMD     x86-64 microprocessors are not affected by this     issue.(CVE-2017-5754)

  - A non-privileged user is able to mount a fuse     filesystem on RHEL 6 or 7 and crash a system if an     application punches a hole in a file that does not end     aligned to a page boundary.(CVE-2017-15121)

  - A flaw was found in the Linux kernel when attempting to     'punch a hole' in files existing on an ext4 filesystem.
    When punching holes into a file races with the page     fault of the same area, it is possible that freed     blocks remain referenced from page cache pages mapped     to process' address space.(CVE-2015-8839)

  - An industry-wide issue was found in the way many modern     microprocessor designs have implemented speculative     execution of instructions past bounds check. The flaw     relies on the presence of a precisely-defined     instruction sequence in the privileged code and the     fact that memory writes occur to an address which     depends on the untrusted value. Such writes cause an     update 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 influence speculative execution     and/or read privileged memory by conducting targeted     cache side-channel attacks.(CVE-2018-3693)

  - A Floating Point Unit (FPU) state information leakage     flaw was found in the way the Linux kernel saved and     restored the FPU state during task switch. Linux     kernels that follow the 'Lazy FPU Restore' scheme are     vulnerable to the FPU state information leakage issue.
    An unprivileged local attacker could use this flaw to     read FPU state bits by conducting targeted cache     side-channel attacks, similar to the Meltdown     vulnerability disclosed earlier this     year.(CVE-2018-3665)

  - A bug in the 32-bit compatibility layer of the ioctl     handling code of the v4l2 video driver in the Linux     kernel has been found. A memory protection mechanism     ensuring that user-provided buffers always point to a     userspace memory were disabled, allowing destination     address to be in a kernel space. This flaw could be     exploited by an attacker to overwrite a kernel memory     from an unprivileged userspace process, leading to     privilege escalation.(CVE-2017-13166)

  - It was found that the raw midi kernel driver does not     protect against concurrent access which leads to a     double realloc (double free) in     snd_rawmidi_input_params() and     snd_rawmidi_output_status() which are part of     snd_rawmidi_ioctl() handler in rawmidi.c file. A     malicious local attacker could possibly use this for     privilege escalation.(CVE-2018-10902)

  - 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 flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause an out-of-bound write in in     fs/jbd2/transaction.c code, a denial of service, and a     system crash by unmounting a crafted ext4 filesystem     image.(CVE-2018-10882)

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 MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2018-3236:06 advisory.

    * An industry-wide issue was found in the way many modern microprocessor designs have implemented     speculative execution of Load

Tenable has extracted the preceding description block directly from the MiracleLinux 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
110600	RHEL 6 : kernel (RHSA-2018:1854)	Nessus	Red Hat Local Security Checks	2018/6/19	2025/4/15	high
110701	Oracle Linux 6 : kernel (ELSA-2018-1854)	Nessus	Oracle Linux Local Security Checks	2018/6/27	2026/2/9	high
287562	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003000)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/16	medium
108984	RHEL 7 : kernel-rt (RHSA-2018:0676)	Nessus	Red Hat Local Security Checks	2018/4/11	2025/3/16	critical
109380	CentOS 7 : kernel (CESA-2018:1062)	Nessus	CentOS Local Security Checks	2018/4/27	2019/12/31	critical
124835	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1514)	Nessus	Huawei Local Security Checks	2019/5/13	2026/1/12	high
289119	MiracleLinux 4 : kernel-2.6.32-754.el6 (AXSA:2018-3236:06)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/2/10	high

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