USN-3119-1: Bind vulnerability
1 November 2016
bind9 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- 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
Tony Finch and Marco Davids discovered that Bind incorrectly handled certain responses containing a DNAME answer. A remote attacker could possibly 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 16.10
- bind9 - 1:9.10.3.dfsg.P4-10.1ubuntu1.1
- Ubuntu 16.04 LTS
- bind9 - 1:9.10.3.dfsg.P4-8ubuntu1.2
- Ubuntu 14.04 LTS
- bind9 - 1:9.9.5.dfsg-3ubuntu0.10
- Ubuntu 12.04 LTS
- bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.19
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.