USN-1869-1: libxxf86dga vulnerabilities

Ubuntu Security Notice USN-1869-1

5th June, 2013

libxxf86dga vulnerabilities

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in libxxf86dga.

Software description

  • libxxf86dga - X11 Direct Graphics Access extension library

Details

Ilja van Sprundel discovered multiple security issues in various X.org
libraries and components. An attacker could use these issues to cause
applications to crash, resulting in a denial of service, or possibly
execute arbitrary code.

Update instructions

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

Ubuntu 13.04:
libxxf86dga1 2:1.1.3-2ubuntu0.13.04.1
Ubuntu 12.10:
libxxf86dga1 2:1.1.3-2ubuntu0.12.10.1
Ubuntu 12.04 LTS:
libxxf86dga1 2:1.1.2-1ubuntu0.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart your session to make all
the necessary changes.

References

CVE-2013-1991, CVE-2013-2000