Ubuntu 13.10 Advisory: 2143-1 Moderate: cups-filters Execution Risk

ubuntu

March 12, 2014

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

Summary

cups-filters could be made to run programs as the lp user if it processed a

specially crafted file.

Software Description:

- cups-filters: OpenPrinting CUPS Filters

Details:

Florian Weimer discovered that cups-filters incorrectly handled memory

in the urftopdf filter. An attacker could possibly use this issue to

execute arbitrary code with the privileges of the lp user. This issue only

affected Ubuntu 13.10. (CVE-2013-6473)

Florian Weimer discovered that cups-filters incorrectly handled memory

in the pdftoopvp filter. An attacker could possibly use this issue to

execute arbitrary code with the privileges of the lp user. (CVE-2013-6474,

CVE-2013-6475)

Florian Weimer discovered that cups-filters did not restrict driver

directories in in the pdftoopvp filter. An attacker could possibly use this

issue to execute arbitrary code with the privileges of the lp user.

(CVE-2013-6476)

Topics Covered

security advisory moderate memory issue execution ubuntu cups-filters

Update Instructions

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

Ubuntu 13.10:
  cups-filters                    1.0.40-0ubuntu1.1

Ubuntu 12.10:
  cups-filters                    1.0.24-2ubuntu0.2

Ubuntu 12.04 LTS:
  cups-filters                    1.0.18-0ubuntu0.2

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