USN-4212-1: HAProxy vulnerability
haproxy vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
Summary
HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 header.
Software Description
- haproxy – fast and reliable load balancing reverse proxy
Details
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.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 19.10
- haproxy – 2.0.5-1ubuntu0.3
- Ubuntu 19.04
- haproxy – 1.8.19-1ubuntu1.3
- Ubuntu 18.04 LTS
- haproxy – 1.8.8-1ubuntu0.9
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.
References
Source: USN-4212-1: HAProxy vulnerability
