Ubuntu 13.10: USN-1870-1 Critical: libx11 Buffer Overflow

ubuntu

June 5, 2013

Several security issues were fixed in libx11.

Summary

Several security issues were fixed in libx11.

Software Description:

- libx11: X11 client-side 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.

Topics Covered

security advisory denial of service security issue system update ubuntu libx11

Update Instructions

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

Ubuntu 13.04:
  libx11-6                        2:1.5.0-1ubuntu1.1

Ubuntu 12.10:
  libx11-6                        2:1.5.0-1ubuntu0.1

Ubuntu 12.04 LTS:
  libx11-6                        2:1.4.99.1-0ubuntu2.1

Ubuntu 10.04 LTS:
  libx11-6                        2:1.3.2-1ubuntu3.1

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