It was discovered that Bind incorrectly handled certain crafted queries when DNS64 was enabled. A remote attacker could use this flaw to cause Bind to crash, resulting in a denial of service.
Updated packages are available from security.ubuntu.com.
========================================================================== Ubuntu Security Notice USN-1657-1 December 06, 2012 bind9 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.10 - Ubuntu 12.04 LTS Summary: Bind could be made to crash if it received specially crafted network traffic. Software Description: - bind9: Internet Domain Name Server Details: It was discovered that Bind incorrectly handled certain crafted queries when DNS64 was enabled. A remote attacker could use this flaw to cause Bind to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.10: bind9 1:9.8.1.dfsg.P1-4.2ubuntu3.1 Ubuntu 12.04 LTS: bind9 1:9.8.1.dfsg.P1-4ubuntu0.5 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1657-1 CVE-2012-5688 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4.2ubuntu3.1 https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.5