USN-2143-1: cups-filters vulnerabilities

Ubuntu Security Notice USN-2143-1

12th March, 2014

cups-filters vulnerabilities

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

  • Ubuntu 13.10
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS

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)

Update instructions

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

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

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

CVE-2013-6473, CVE-2013-6474, CVE-2013-6475, CVE-2013-6476