[USN-1863-1] libxrender vulnerability

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==========================================================================
Ubuntu Security Notice USN-1863-1
June 05, 2013

libxrender vulnerability
==========================================================================

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in libxrender.

Software Description:
- libxrender: X Rendering Extension client 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:
libxrender1 1:0.9.7-1ubuntu0.13.04.1

Ubuntu 12.10:
libxrender1 1:0.9.7-1ubuntu0.12.10.1

Ubuntu 12.04 LTS:
libxrender1 1:0.9.6-2ubuntu0.1

Ubuntu 10.04 LTS:
libxrender1 1:0.9.5-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-1863-1
CVE-2013-1987

Package Information:
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.7-1ubuntu0.13.04.1
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.7-1ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.6-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.5-1ubuntu0.1