USN-4321-1: HAProxy vulnerability
7 April 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 18.04 LTS
HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 request.
- haproxy - fast and reliable load balancing reverse proxy
Felix Wilhelm discovered that HAProxy incorrectly handled certain HTTP/2 requests. An attacker could possibly use this to 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.