USN-1385-1: APT vulnerability
Ubuntu Security Notice USN-1385-1
6th March, 2012
apt vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
Summary
An attacker could trick APT into installing altered packages.
Software description
- apt - Advanced front-end for dpkg
Details
Simon Ruderich discovered that APT incorrectly handled repositories that
use InRelease files. The default Ubuntu repositories do not use InRelease
files, so this issue only affected third-party repositories. If a remote
attacker were able to perform a man-in-the-middle attack, this flaw could
potentially be used to install altered packages.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- apt 0.8.16~exp5ubuntu13.2
- Ubuntu 11.04:
- apt 0.8.13.2ubuntu4.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.