Ubuntu Security Notice 1857-1 - 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.
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Ubuntu Security Notice USN-1857-1
June 05, 2013
libxext vulnerability
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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