USN-3746-1: APT vulnerability

20 August 2018

apt vulnerability

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

  • Ubuntu 18.04 LTS

Summary

An attacker could trick APT into installing altered packages.

Software Description

  • apt - Advanced front-end for dpkg

Details

It was discovered that APT incorrectly handled the mirror method (mirror://). If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages in environments configured to use mirror:// entries.

Update instructions

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

Ubuntu 18.04 LTS
apt - 1.6.3ubuntu0.1

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.

References