It was discovered that Bind incorrectly handled certain specially crafted long resource records. 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-1566-1 September 13, 2012 bind9 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 LTS - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS Summary: Bind could be made to crash or if it received specially crafted network traffic. Software Description: - bind9: Internet Domain Name Server Details: It was discovered that Bind incorrectly handled certain specially crafted long resource records. 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 12.04 LTS: libdns81 1:9.8.1.dfsg.P1-4ubuntu0.3 Ubuntu 11.10: libdns69 1:9.7.3.dfsg-1ubuntu4.4 Ubuntu 11.04: libdns69 1:9.7.3.dfsg-1ubuntu2.6 Ubuntu 10.04 LTS: libdns64 1:9.7.0.dfsg.P1-1ubuntu0.7 Ubuntu 8.04 LTS: libdns36 1:9.4.2.dfsg.P2-2ubuntu0.11 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1566-1 CVE-2012-4244 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.3 https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu4.4 https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu2.6 https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.7 https://launchpad.net/ubuntu/+source/bind9/1:9.4.2.dfsg.P2-2ubuntu0.11