USN-3863-2: APT vulnerability

22 January 2019

apt vulnerability

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

  • Ubuntu 12.04 ESM


An attacker could trick APT into installing altered packages.

Software Description

  • apt - Advanced front-end for dpkg


USN-3863-1 fixed a vulnerability in APT. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Max Justicz discovered that APT incorrectly handled certain parameters during redirects. 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 12.04 ESM
apt - 0.8.16~exp12ubuntu10.28

To update your system, please follow these instructions:

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