USN-3950-1: ZNC vulnerability
18 April 2019
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
ZNC could be made to crash or run programs if it received specially crafted network traffic.
- znc - advanced modular IRC bouncer
It was discovered that ZNC incorrectly handled certain invalid encodings. An authenticated remote user could use this issue to cause ZNC to crash, resulting in a denial of service, or possibly execute arbitrary code.
The problem can be corrected by updating your system to the following package versions:
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.