HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 header.
Tim Düsterhus discovered that HAProxy incorrectly handled certain HTTP/2 headers. An attacker could possibly use this issue to execute arbitrary code through CRLF injection.
4 December 2019
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 header.
Tim Düsterhus discovered that HAProxy incorrectly handled certain HTTP/2 headers. An attacker could possibly use this issue to execute arbitrary code through CRLF injection.
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.
Vulmon