========================================================================== Ubuntu Security Notice USN-3956-1 April 25, 2019
bind9 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.04 - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Bind could be made to consume resources if it received specially crafted network traffic. Software Description: - bind9: Internet Domain Name Server Details: It was discovered that Bind incorrectly handled limiting the number of simultaneous TCP clients. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: bind9 1:9.11.5.P1+dfsg-1ubuntu2.3 Ubuntu 18.10: bind9 1:9.11.4+dfsg-3ubuntu5.3 Ubuntu 18.04 LTS: bind9 1:9.11.3+dfsg-1ubuntu1.7 Ubuntu 16.04 LTS: bind9 1:9.10.3.dfsg.P4-8ubuntu1.14 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3956-1 CVE-2018-5743 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.11.5.P1+dfsg-1ubuntu2.3 https://launchpad.net/ubuntu/+source/bind9/1:9.11.4+dfsg-3ubuntu5.3 https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.7 https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.14
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