The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3777-2 advisory.

    USN-3777-1 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.

    Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows,     leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service     (system crash) or execute arbitrary code. (CVE-2018-17182)

    It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle     some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local     attacker could use this to expose sensitive information. (CVE-2018-15594)

    It was discovered that microprocessors utilizing speculative execution and prediction of return addresses     via Return Stack Buffer (RSB) may allow unauthorized memory reads via sidechannel attacks. An attacker     could use this to expose sensitive information. (CVE-2018-15572)

    Andy Lutomirski and Mika Penttil discovered that the KVM implementation in the Linux kernel did not     properly check privilege levels when emulating some instructions. An unprivileged attacker in a guest VM     could use this to escalate privileges within the guest. (CVE-2018-10853)

    It was discovered that a stack-based buffer overflow existed in the iSCSI target implementation of the     Linux kernel. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2018-14633)

    It was discovered that a memory leak existed in the IRDA subsystem of the Linux kernel. A local attacker     could use this to cause a denial of service (kernel memory exhaustion). (CVE-2018-6554)

    It was discovered that a use-after-free vulnerability existed in the IRDA implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2018-6555)

    USN 3653-2 added a mitigation for Speculative Store Bypass a.k.a. Spectre Variant 4 (CVE-2018-3639). This     update provides the corresponding mitigation for ARM64 processors. Please note that for this mitigation to     be effective, an updated firmware for the processor may be required. '

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.

Detections

Analytics

Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3777-2)

high Nessus Plugin ID 117873

Version 1.13

Version 1.12

Version 1.11

Version 1.13 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.12 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401100845
Version 1.11 Oct 21, 2023, 9:06 AM CVSS metrics ("CVSSv3 score" changed from 7.0 to 7.8. "CVSSv3 vector" changed from "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H" to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H") CVSSv3 score source (set to "CVE-2018-6555") Detection Plugin metadata Plugin Feed: 202310210906