USN-3310-1: lintian vulnerability

6 June 2017

lintian vulnerability

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

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 LTS

Summary

lintian could be made to run programs if it processed a specially crafted package.

Software Description

  • lintian - Debian package checker

Details

Jakub Wilk discovered that lintian incorrectly handled deserializing certain YAML files. If a user or automated system were tricked into running lintian on a specially crafted package, a remote attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 17.04
lintian - 2.5.50.1ubuntu0.1
Ubuntu 16.10
lintian - 2.5.48ubuntu0.1
Ubuntu 16.04 LTS
lintian - 2.5.43ubuntu0.1

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