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Ubuntu 22.04 LTS 8091-1 util

Linuxsecurity •LinuxSecurity Advisories • March 12, 2026

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: util-linux could be made to run programs as an administrator. Software Description: - util-linux: miscellaneous system utilities Details: It was discovered that the util-linux su utility did not drop capabilities when being used with the --pty option. While not a security issue by itself, a local attacker could possibly use the su tool to exploit vulnerabilities in other applications.

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 util-linux 2.41-4ubuntu4.2 Ubuntu 24.04 LTS util-linux 2.39.3-9ubuntu6.5 Ubuntu 22.04 LTS util-linux 2.37.2-4ubuntu3.5 Ubuntu 20.04 LTS util-linux 2.34-0.1ubuntu9.6+esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

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Security Flaw in util-linux su Utility Affects Multiple Ubuntu Releases A security vulnerability has been identified in the util-linux package, specifically affecting the su utility across several Ubuntu releases, including 25.10, 24.04 LTS, 22.04 LTS, and 20.04 LTS. The issue arises from the su utility not dropping capabilities when used with the --pty option, which could allow a local attacker to exploit vulnerabilities in other applications. Although this flaw is not a direct security threat, it opens the door for potential exploitation. Users are advised to update their systems to the latest package versions to mitigate any risks. The affected package versions are 2.41-4ubuntu4.2 for Ubuntu 25.10, 2.39.3-9ubuntu6.5 for 24.04 LTS, 2.37.2-4ubuntu3.5 for 22.04 LTS, and 2.34-0.1ubuntu9.6+esm1 for 20.04 LTS. A standard system update will apply the necessary changes. The vulnerability highlights the importance of maintaining updated software to prevent exploitation. 2 sources 46

Ubuntu 22.04 LTS 8091-1 util

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