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Ubuntu 15.10 USN-2831-1 Critical: cups-filters Code Execution Attack

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Calendar Grey December 7, 2015
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Ubuntu Security Notice 2831-1 highlights a cups-filters flaw that may permit unauthorized code execution through crafted print tasks.
cups-filters could be made to run programs as the lp user if it processed a specially crafted print job.

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

https://ubuntu.com/security/notices/USN-2831-1

CVE-2015-8327

Severity
critical
Lowest
Low
Medium
High
Critical

December 07, 2015

Package Information

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