The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6446-1 advisory.

    Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle     certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker     in a guest VM could use this to cause a denial of service (host system crash) or possibly execute     arbitrary code. (CVE-2023-34319)

    Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading     to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2023-4244)

    Kyle Zeng discovered that the networking stack implementation in the Linux kernel did not properly     validate skb object size in certain conditions. An attacker could use this cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-42752)

    Kyle Zeng discovered that the netfiler subsystem in the Linux kernel did not properly calculate array     offsets, leading to a out-of-bounds write vulnerability. A local user could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-42753)

    Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP) classifier implementation in the     Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to cause a     denial of service (system crash). Please note that kernel packet classifier support for RSVP has been     removed to resolve this vulnerability. (CVE-2023-42755)

    Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set     operations in certain situations. A local attacker could use this to cause a denial of service (system     crash). (CVE-2023-42756)

    Bing-Jhong Billy Jheng discovered that the Unix domain socket implementation in the Linux kernel contained     a race condition in certain 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-2023-4622)

    Budimir Markovic discovered that the qdisc implementation in the Linux kernel did not properly validate     inner classes, leading to a use-after-free vulnerability. A local user could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-4623)

    Alex Birnberg discovered that the netfilter subsystem in the Linux kernel did not properly validate     register length, leading to an out-of- bounds write vulnerability. A local attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-4881)

    It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not     properly handle network packets in certain conditions, 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-2023-4921)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle removal of     rules from chain bindings in certain circumstances, leading to a use-after-free vulnerability. A local     attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code.
    (CVE-2023-5197)

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 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6446-1)

high Nessus Plugin ID 183454

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.2

Version 1.1

Version 1.0

Version 1.5 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 1.4 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401100845
Version 1.3 Dec 22, 2023, 3:04 PM CVSSv3 score source (changed from "CVE-2023-5197" to none) Plugin Feed: 202312221504
Version 1.2 Dec 15, 2023, 2:39 PM CVSSv2 score source (changed from "CVE-2023-5197" to "CVE-2023-4921") CVSSv3 score source (set to "CVE-2023-5197") Plugin Feed: 202312151439
Version 1.2 Dec 22, 2023, 1:07 PM CVSSv3 score source (changed from "CVE-2023-5197" to none) Plugin Feed: 202312221307
Version 1.1 Dec 5, 2023, 2:37 PM CVSSv2 score source (changed from "CVE-2023-4921" to "CVE-2023-5197") Plugin Feed: 202312051437
Version 1.0 Oct 20, 2023, 9:29 AM New Plugin Feed: 202310200929