============================================================================ Ubuntu Security Notice USN-2669-1 July 07, 2015 bind9 vulnerability ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.04 - Ubuntu 14.10 - Ubuntu 14.04 LTS - 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: Breno Silveira Soares discovered that Bind incorrectly handled certain zone data when configured to perform DNSSEC validation. A remote attacker could use this issue with specially crafted zone data 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 15.04: bind9 1:9.9.5.dfsg-9ubuntu0.1 Ubuntu 14.10: bind9 1:9.9.5.dfsg-4.3ubuntu0.3 Ubuntu 14.04 LTS: bind9 1:9.9.5.dfsg-3ubuntu0.3 Ubuntu 12.04 LTS: bind9 1:9.8.1.dfsg.P1-4ubuntu0.11 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2669-1 CVE-2015-4620 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-9ubuntu0.1 https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-4.3ubuntu0.3 https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.3 https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.11