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Ubuntu 24.04 LTS / 24.10 : Linux kernel vulnerability (USN-7489-1)

medium Nessus Plugin ID 235361

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 24.04 LTS / 24.10 host has a package installed that is affected by a vulnerability as referenced in the USN-7489-1 advisory.

 One security issue was discovered in the Linux kernel. An attacker could possibly use this to compromise the system. This update corrects flaws in the following subsystems:

 - Timer subsystem; (CVE-2025-21813)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-7489-1

Plugin Details

Severity: Medium

ID: 235361

File Name: ubuntu_USN-7489-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/6/2025

Updated: 5/6/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-21813

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-25-generic, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1014-gcp-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1015-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1012-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1015-oracle-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1013-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1013-lowlatency-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1013-lowlatency, cpe:/o:canonical:ubuntu_linux:24.10, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-1014-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.11.0-25-generic-64k

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 5/6/2025

Vulnerability Publication Date: 2/27/2025

Reference Information

CVE: CVE-2025-21813

USN: 7489-1