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Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerability (USN-7758-1)

info Nessus Plugin ID 265696

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-7758-1 advisory.

 It was discovered that the AF_UNIX socket garbage collection implementation in Ubuntu Noble's 6.8 kernel did not properly handle out-of-band (OOB) messages, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

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-7758-1

Plugin Details

Severity: Info

ID: 265696

File Name: ubuntu_USN-7758-1.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 9/22/2025

Updated: 6/3/2026

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1038-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-83-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-83-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1035-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1035-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1035-oracle-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1022-gkeop, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1039-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1039-gcp-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-83-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-1038-aws-64k, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.8.0-83-lowlatency-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: 9/19/2025

Vulnerability Publication Date: 9/19/2025

Reference Information

USN: 7758-1