[USN-6376-1] c-ares vulnerability
Ubuntu Security Notice USN-6376-1
September 18, 2023
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
c-ares could be made to crash if it received specially crafted network
- c-ares: library for asynchronous name resolution
It was discovered that c-ares incorrectly parsed certain SOA replies. A
remote attacker could possibly use this issue to cause c-res to crash,
resulting in a denial of service.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
In general, a standard system update will make all the necessary changes.
A c-ares security update has been released for Ubuntu Linux 20.04 LTS.