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Ubuntu Security Notice USN-2831-1
December 07, 2015

cups-filters vulnerability
==========================================================================

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

– Ubuntu 15.10
– Ubuntu 15.04
– Ubuntu 14.04 LTS

Summary:

cups-filters could be made to run programs as the lp user if it processed a
specially crafted print job.

Software Description:
– cups-filters: OpenPrinting CUPS Filters

Details:

Michal Kowalczyk 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.

Update instructions:

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

Ubuntu 15.10:
cups-filters 1.0.76-1ubuntu0.1

Ubuntu 15.04:
cups-filters 1.0.67-0ubuntu2.5

Ubuntu 14.04 LTS:
cups-filters 1.0.52-0ubuntu1.6

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

References:
http://www.ubuntu.com/usn/usn-2831-1
CVE-2015-8327

Package Information:
https://launchpad.net/ubuntu/+source/cups-filters/1.0.76-1ubuntu0.1
https://launchpad.net/ubuntu/+source/cups-filters/1.0.67-0ubuntu2.5
https://launchpad.net/ubuntu/+source/cups-filters/1.0.52-0ubuntu1.6

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