[USN-1385-1] APT vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Tue Mar 6 16:18:56 UTC 2012

Ubuntu Security Notice USN-1385-1
March 06, 2012

apt vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04


An attacker could trick APT into installing altered packages.

Software Description:
- apt: Advanced front-end for dpkg


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 versions:

Ubuntu 11.10:
  apt                             0.8.16~exp5ubuntu13.2

Ubuntu 11.04:

In general, a standard system update will make all the necessary changes.


Package Information:

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