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USN-1889-1: HAProxy vulnerability

20 June 2013

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.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04

In general, a standard system update will make all the necessary changes.