========================================================================== Ubuntu Security Notice USN-3769-1 September 20, 2018 bind9 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 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 the deny-answer-aliases feature. If this feature is enabled, a remote attacker could use this issue 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 18.04 LTS: bind9 1:9.11.3+dfsg-1ubuntu1.2 Ubuntu 16.04 LTS: bind9 1:9.10.3.dfsg.P4-8ubuntu1.11 Ubuntu 14.04 LTS: bind9 1:9.9.5.dfsg-3ubuntu0.18 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3769-1 CVE-2018-5740 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.2 https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.11 https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.18