Ubuntu Security Notice USN-1889-1
20th June, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
HAProxy could be made to crash if it received specially crafted network traffic.
- haproxy - fast and reliable load balancing reverse proxy
David Torgerson discovered that HAProxy incorrectly parsed certain HTTP
headers. A remote attacker could use this issue to cause HAProxy to stop
responding, resulting in a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- haproxy 1.4.18-0ubuntu3.1
- Ubuntu 12.10:
- haproxy 1.4.18-0ubuntu2.2
- Ubuntu 12.04 LTS:
- haproxy 1.4.18-0ubuntu1.2
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.