Ubuntu Security Notice 1928-1 – It was discovered that Puppet incorrectly handled the resource_type service. A local attacker on the master could use this issue to execute arbitrary Ruby files. It was discovered that Puppet incorrectly handled permissions on the modules it installed. Modules could be installed with the permissions that existed when they were built, possibly exposing them to a local attacker. Various other issues were also addressed…. Ubuntu Security Notice 1928-1 – It was discovered that Puppet incorrectly handled the resource_type service. A local attacker on the master could use this issue to execute arbitrary Ruby files. It was discovered that Puppet incorrectly handled permissions on the modules it installed. Modules could be installed with the permissions that existed when they were built, possibly exposing them to a local attacker. Various other issues were also addressed.

Read more http://packetstormsecurity.com/files/122839/USN-1928-1.txt