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==========================================================================
Ubuntu Security Notice USN-1857-1
June 05, 2013

libxext 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 libxext.

Software Description:
- libxext: X11 miscellaneous extensions 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:
  libxext6                        2:1.3.1-2ubuntu0.13.04.1

Ubuntu 12.10:
  libxext6                        2:1.3.1-2ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  libxext6                        2:1.3.0-3ubuntu0.1

Ubuntu 10.04 LTS:
  libxext6                        2:1.1.1-2ubuntu0.1

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

References:
  http://www.ubuntu.com/usn/usn-1857-1
  CVE-2013-1982

Package Information:
  https://launchpad.net/ubuntu/+source/libxext/2:1.3.1-2ubuntu0.13.04.1
  https://launchpad.net/ubuntu/+source/libxext/2:1.3.1-2ubuntu0.12.10.1
  https://launchpad.net/ubuntu/+source/libxext/2:1.3.0-3ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxext/2:1.1.1-2ubuntu0.1



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