Ubuntu Security Notice 1889-1 - 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.
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Ubuntu Security Notice USN-1889-1
June 20, 2013
haproxy vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
Summary:
HAProxy could be made to crash if it received specially crafted network
traffic.
Software Description:
- haproxy: fast and reliable load balancing reverse proxy
Details:
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:
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
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1889-1
CVE-2013-2175
Package Information:
https://launchpad.net/ubuntu/+source/haproxy/1.4.18-0ubuntu3.1
https://launchpad.net/ubuntu/+source/haproxy/1.4.18-0ubuntu2.2
https://launchpad.net/ubuntu/+source/haproxy/1.4.18-0ubuntu1.2