[USN-1868-1] libxvmc vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-1868-1
June 05, 2013

libxvmc 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 libxvmc.

Software Description:
- libxvmc: X11 Video 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 versions:

Ubuntu 13.04:
libxvmc1 2:1.0.7-1ubuntu1.13.04.1

Ubuntu 12.10:
libxvmc1 2:1.0.7-1ubuntu1.12.10.1

Ubuntu 12.04 LTS:
libxvmc1 2:1.0.6-1ubuntu2.1

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

References:
http://www.ubuntu.com/usn/usn-1868-1
CVE-2013-1990, CVE-2013-1999

Package Information:
https://launchpad.net/ubuntu/+source/libxvmc/2:1.0.7-1ubuntu1.13.04.1
https://launchpad.net/ubuntu/+source/libxvmc/2:1.0.7-1ubuntu1.12.10.1
https://launchpad.net/ubuntu/+source/libxvmc/2:1.0.6-1ubuntu2.1