Skip to content
Ubuntu 25.10: python-apt Critical DoS Vulnerability Advisory USN-7916

Ubuntu 25.10: python-apt Critical DoS Vulnerability Advisory USN-7916

Linuxsecurity •LinuxSecurity Advisories • December 9, 2025

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: python-apt could be made to crash if it opened a specially crafted file. Software Description: - python-apt: Python interface to libapt-pkg Details: Julian Andres Klode discovered that python-apt incorrectly handled deb822 configuration files. An attacker could use this issue to cause python-apt to crash, resulting in a denial of service.

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: python-apt could be made to crash if it opened a specially crafted file. Software Description: - python-apt: Python interface to libapt-pkg Details: Julian Andres Klode discovered that python-apt incorrectly handled deb822 configuration files. An attacker could use this issue to cause python-apt to crash, resulting in a denial of service.

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 python-apt-dev 3.0.0ubuntu1.1 python3-apt 3.0.0ubuntu1.1 Ubuntu 25.04 python-apt-dev 3.0.0ubuntu0.25.04.1 python3-apt 3.0.0ubuntu0.25.04.1 Ubuntu 24.04 LTS python-apt-dev 2.7.7ubuntu5.1 python3-apt 2.7.7ubuntu5.1 Ubuntu 22.04 LTS python-apt-dev 2.4.0ubuntu4.1 python3-apt 2.4.0ubuntu4.1 Ubuntu 20.04 LTS python-apt 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro python-apt-dev 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro python3-apt 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS python-apt 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro python-apt-dev 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro python3-apt 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS python-apt 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro python-apt-dev 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro python3-apt 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro Ubuntu 14.04 LTS python-apt 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro python-apt-dev 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro python3-apt 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 python-apt-dev 3.0.0ubuntu1.1 python3-apt 3.0.0ubuntu1.1 Ubuntu 25.04 python-apt-dev 3.0.0ubuntu0.25.04.1 python3-apt 3.0.0ubuntu0.25.04.1 Ubuntu 24.04 LTS python-apt-dev 2.7.7ubuntu5.1 python3-apt 2.7.7ubuntu5.1 Ubuntu 22.04 LTS python-apt-dev 2.4.0ubuntu4.1 python3-apt 2.4.0ubuntu4.1 Ubuntu 20.04 LTS python-apt 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro python-apt-dev 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro python3-apt 2.0.1ubuntu0.20.04.1+esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS python-apt 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro python-apt-dev 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro python3-apt 1.6.6ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS python-apt 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro python-apt-dev 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro python3-apt 1.1.0~beta1ubuntu0.16.04.12+esm1 Available with Ubuntu Pro Ubuntu 14.04 LTS python-apt 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro python-apt-dev 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro python3-apt 0.9.3.5ubuntu3+esm5 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

CVE-2025-6966

Extracted Entities

Attack Types (1)

Companies (1)

CVEs (1)