The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001287 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 Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3821-2 advisory.

    USN-3821-1 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.

    Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that     xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880)

    It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow     vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

    Wen Xu discovered that the f2fs filesystem implementation in the Linux kernel did not properly validate     metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a     denial of service (system crash). (CVE-2018-13096)

    Wen Xu and Po-Ning Tseng discovered that the btrfs filesystem implementation in the Linux kernel did not     properly handle relocations in some situations. An attacker could use this to construct a malicious btrfs     image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14609)

    Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle     malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

    Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly     restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to     expose sensitive information. (CVE-2018-17972)

    It was discovered that the KVM implementation in the Linux kernel on ARM 64bit processors did not properly     handle some ioctls. An attacker with the privilege to create KVM-based virtual machines could use this to     cause a denial of service (host system crash) or execute arbitrary code in the host. (CVE-2018-18021)

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 remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3931-2 advisory.

    USN-3931-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu     16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.

    M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not properly set up all arguments to an     error handler callback used when running as a paravirtualized guest. An unprivileged attacker in a     paravirtualized guest VM could use this to cause a denial of service (guest VM crash). (CVE-2018-14678)

    It was discovered that the KVM implementation in the Linux kernel on ARM 64bit processors did not properly     handle some ioctls. An attacker with the privilege to create KVM-based virtual machines could use this to     cause a denial of service (host system crash) or execute arbitrary code in the host. (CVE-2018-18021)

    Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the Advanced Linux Sound     Architecture (ALSA) subsystem. A physically proximate attacker could use this to cause a denial of service     (system crash). (CVE-2018-19824)

    Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an information leak in the Bluetooth     implementation of the Linux kernel. An attacker within Bluetooth range could use this to expose sensitive     information (kernel memory). (CVE-2019-3459, CVE-2019-3460)

    Jann Horn discovered that the KVM implementation in the Linux kernel contained a use-after-free     vulnerability. An attacker in a guest VM with access to /dev/kvm could use this to cause a denial of     service (guest VM crash). (CVE-2019-6974)

    Jim Mattson and Felix Wilhelm discovered a use-after-free vulnerability in the KVM subsystem of the Linux     kernel, when using nested virtual machines. A local attacker in a guest VM could use this to cause a     denial of service (system crash) or possibly execute arbitrary code in the host system. (CVE-2019-7221)

    Felix Wilhelm discovered that an information leak vulnerability existed in the KVM subsystem of the Linux     kernel, when nested virtualization is used. A local attacker could use this to expose sensitive     information (host system memory to a guest VM). (CVE-2019-7222)

    Jann Horn discovered that the eBPF implementation in the Linux kernel was insufficiently hardened against     Spectre V1 attacks. A local attacker could use this to expose sensitive information. (CVE-2019-7308)

    It was discovered that a use-after-free vulnerability existed in the user- space API for crypto (af_alg)     implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2019-8912)

    It was discovered that the Linux kernel did not properly deallocate memory when handling certain errors     while reading files. A local attacker could use this to cause a denial of service (excessive memory     consumption). (CVE-2019-8980)

    Jann Horn discovered that the mmap implementation in the Linux kernel did not properly check for the mmap     minimum address in some situations. A local attacker could use this to assist exploiting a kernel NULL     pointer dereference vulnerability. (CVE-2019-9213)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002961 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
291107	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001287)	Nessus	Unity Linux Local Security Checks	2026/1/16	2026/1/16	high
118972	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3821-2)	Nessus	Ubuntu Local Security Checks	2018/11/15	2024/8/28	high
123679	Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3931-2)	Nessus	Ubuntu Local Security Checks	2019/4/3	2024/8/27	high
284945	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002961)	Nessus	Unity Linux Local Security Checks	2026/1/15	2026/1/16	high

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