The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6605-2 advisory.

    Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network     family support while creating a new netfilter table. A local attacker could use this to cause a denial of     service or possibly execute arbitrary code. (CVE-2023-6040)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to 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-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     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-2023-6932)

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 : Linux kernel (KVM) vulnerabilities (USN-6605-2)

high Nessus Plugin ID 189759

Version 1.2

Version 1.1

Version 1.0

Version 1.2 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 1.1 Feb 2, 2024, 3:59 PM CVSSv2 score source (changed from "CVE-2023-6931" to "CVE-2023-6040") Plugin Feed: 202402021559
Version 1.0 Jan 30, 2024, 7:33 AM New Plugin Feed: 202401300733