cups-filters could be made to run programs as the lp user if it processed a specially crafted print job.
Adam Chester discovered that the cups-filters foomatic-rip filter incorrectly stripped shell escape characters. A remote attacker could possibly use this issue to execute arbitrary code as the lp user.
16 December 2015
A security issue affects these releases of Ubuntu and its derivatives:
cups-filters could be made to run programs as the lp user if it processed a specially crafted print job.
Adam Chester discovered that the cups-filters foomatic-rip filter incorrectly stripped shell escape characters. A remote attacker could possibly use this issue to execute arbitrary code as the lp user.
The problem can be corrected by updating your system to the following package versions:
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.