============================================================================ Ubuntu Security Notice USN-1855-1 June 05, 2013 libxcb 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 libxcb. Software Description: - libxcb: X C Binding 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: libxcb1 1.8.1-2ubuntu2.1 Ubuntu 12.10: libxcb1 1.8.1-1ubuntu1.1 Ubuntu 12.04 LTS: libxcb1 1.8.1-1ubuntu0.2 Ubuntu 10.04 LTS: libxcb1 1.5-2ubuntu0.1 After a standard system update you need to restart your session to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1855-1 CVE-2013-2064 Package Information: https://launchpad.net/ubuntu/+source/libxcb/1.8.1-2ubuntu2.1 https://launchpad.net/ubuntu/+source/libxcb/1.8.1-1ubuntu1.1 https://launchpad.net/ubuntu/+source/libxcb/1.8.1-1ubuntu0.2 https://launchpad.net/ubuntu/+source/libxcb/1.5-2ubuntu0.1