HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 request.
Felix Wilhelm discovered that HAProxy incorrectly handled certain HTTP/2 requests. An attacker could possibly use this to execute arbitrary code.
7 April 2020
A security issue affects these releases of Ubuntu and its derivatives:
HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 request.
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.