USN-1194-1: Foomatic filters vulnerabilities

22 August 2011

foomatic-filters vulnerabilities

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

  • Ubuntu 11.04
  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 8.04 LTS

Summary

An attacker could send crafted input to Foomatic and cause it to run programs as the “lp” user.

Software Description

  • foomatic-filters - OpenPrinting printer support - filters

Details

It was discovered that the foomatic-rip Foomatic filter incorrectly handled command-line options. An attacker could use this flaw to cause Foomatic to execute arbitrary code as the “lp” user.

In the default installation, attackers would be isolated by the CUPS AppArmor profile.

Update instructions

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

Ubuntu 11.04
foomatic-filters - 4.0.7-0ubuntu1.1
Ubuntu 10.10
foomatic-filters - 4.0.5-0ubuntu3.1
Ubuntu 10.04 LTS
foomatic-filters - 4.0.4-0ubuntu1.1
Ubuntu 8.04 LTS
foomatic-filters - 3.0.2-20071204-0ubuntu2.3

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