The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002816 advisory.

    arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the     KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can     arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also     cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of     insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation     does not prevent unintended execution modes.

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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4270 advisory.

    - scsi: sg: mitigate read/write abuse (Jann Horn)  [Orabug: 28824731]  {CVE-2017-13168}
    - infiniband: fix a possible use-after-free bug (Cong Wang)  [Orabug: 28774511]  {CVE-2018-14734}
    - x86/speculation: Unconditionally fill RSB on context switch (Alejandro Jimenez)  [Orabug: 28631576]     {CVE-2018-15572}
    - arm64: KVM: Sanitize PSTATE.M when being set from userspace (Marc Zyngier)  [Orabug: 28762424]     {CVE-2018-18021}
    - arm64: KVM: Tighten guest core register access from userspace (Dave Martin)  [Orabug: 28762424]     {CVE-2018-18021}
    - mm: get rid of vmacache_flush_all() entirely (Linus Torvalds)  [Orabug: 28700955]  {CVE-2018-17182}
    - btrfs: validate type when reading a chunk (Gu Jinxiang)  [Orabug: 28700851]  {CVE-2018-14611}
    - btrfs: Check that each block group has corresponding chunk at mount time (Qu Wenruo)  [Orabug: 28700872]     {CVE-2018-14610}

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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3656 advisory.

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

    Security Fix(es):

    * kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation     (CVE-2018-17182)

    * kernel: Privilege escalation on arm64 via KVM hypervisor (CVE-2018-18021)

    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.

    Bug Fix(es):

    These updated kernel packages include also numerous bug fixes. Space precludes documenting all of the bug     fixes in this advisory. See the descriptions in the related Knowledge Article:
    https://access.redhat.com/articles/3714391

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

  - arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the     KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can     arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also     cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of     insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation     does not prevent unintended execution modes. (CVE-2018-18021)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
287036	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002816)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/16	high
118861	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2018-4270)	Nessus	Oracle Linux Local Security Checks	2018/11/11	2026/2/9	high
119170	RHEL 7 : kernel-alt (RHSA-2018:3656)	Nessus	Red Hat Local Security Checks	2018/11/27	2025/4/15	high
245900	Linux Distros Unpatched Vulnerability : CVE-2018-18021	Nessus	Misc.	2025/8/8	2026/7/17	high

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