USN-1886-1: Puppet vulnerability

18 June 2013

puppet vulnerability

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


Puppet could be made to run programs if it received specially crafted network traffic.

Software Description

  • puppet - Centralized configuration management


It was discovered that Puppet incorrectly handled YAML payloads. An attacker on an untrusted client could use this issue to execute arbitrary code on the master.

Update instructions

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

Ubuntu 13.04
puppet-common - 2.7.18-4ubuntu1.1
Ubuntu 12.10
puppet-common - 2.7.18-1ubuntu1.2
Ubuntu 12.04 LTS
puppet-common - 2.7.11-1ubuntu2.3

To update your system, please follow these instructions:

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