========================================================================== Ubuntu Security Notice USN-2081-1 January 13, 2014 bind9 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 13.10 - Ubuntu 13.04 - Ubuntu 12.10 - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Bind could be made to crash if it received specially crafted network traffic. Software Description: - bind9: Internet Domain Name Server Details: Jared Mauch discovered that Bind incorrectly handled certain queries for NSEC3-signed zones. A remote attacker could use this flaw with a specially crafted query to cause Bind to stop responding, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 13.10: bind9 1:9.9.3.dfsg.P2-4ubuntu1.1 Ubuntu 13.04: bind9 1:9.9.2.dfsg.P1-2ubuntu2.2 Ubuntu 12.10: bind9 1:9.8.1.dfsg.P1-4.2ubuntu3.4 Ubuntu 12.04 LTS: bind9 1:9.8.1.dfsg.P1-4ubuntu0.8 Ubuntu 10.04 LTS: bind9 1:9.7.0.dfsg.P1-1ubuntu0.11 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2081-1 CVE-2014-0591 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.9.3.dfsg.P2-4ubuntu1.1 https://launchpad.net/ubuntu/+source/bind9/1:9.9.2.dfsg.P1-2ubuntu2.2 https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4.2ubuntu3.4 https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.8 https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.11