USN-1270-1: Software Center vulnerability

21 November 2011

software-center vulnerability

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

  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.10


An attacker could trick Software Center into installing altered packages and repositories or exposing sensitive information over the network.

Software Description

  • software-center - Utility for browsing, installing, and removing software


David B. discovered that Software Center incorrectly validated server certificates when performing secure connections. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information or install altered packages and repositories.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.10
software-center - 5.0.2ubuntu0.1
Ubuntu 11.04
software-center - 4.0.5ubuntu0.1
Ubuntu 10.10
software-center - 3.0.10ubuntu0.1

To update your system, please follow these instructions:

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