The remote Ubuntu 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6317-1 advisory.

    Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state     after speculative execution of various instructions. A local unprivileged user could use this to obtain to     sensitive information. (CVE-2022-40982)

    Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain     vector register instructions. A local attacker could use this to expose sensitive information.
    (CVE-2023-20593)

    It was discovered that the universal 32bit network packet classifier implementation in the Linux kernel     did not properly perform reference counting in some situations, leading to a use-after-free vulnerability.
    A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-3609)

    It was discovered that the Quick Fair Queueing network scheduler implementation in the Linux kernel     contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-3611)

    It was discovered that the network packet classifier with netfilter/firewall marks implementation in the     Linux kernel did not properly handle reference counting, leading to a use-after-free vulnerability. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-3776)

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 18.04 ESM / 20.04 LTS : Linux kernel vulnerabilities (USN-6317-1)

critical Nessus Plugin ID 180257

Version 1.3

Version 1.2

Version 1.1

Version 1.0

Version 1.3 Sep 19, 2024, 8:47 AM CVSS metrics ("Cvssv4 threat vector" set to "CVSS:4.0/E:P") Plugin Feed: 202409190847
Version 1.2 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 9.3) CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.1 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin Feed: 202401100845
Version 1.0 Aug 30, 2023, 2:05 AM New Plugin Feed: 202308300205