USN-6294-1: HAProxy vulnerability

Releases

• Ubuntu 23.04
• Ubuntu 22.04 LTS

Packages

• haproxy - fast and reliable load balancing reverse proxy

Details

Ben Kallus discovered that HAProxy incorrectly handled empty Content-Length
headers. A remote attacker could possibly use this issue to manipulate the
payload and bypass certain restrictions.

Update instructions

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

Ubuntu 23.04

• haproxy - 2.6.9-1ubuntu1.1

Ubuntu 22.04

• haproxy - 2.4.22-0ubuntu0.22.04.2

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

References

• CVE-2023-40225

Related notices

• USN-6294-2: haproxy, vim-haproxy, haproxy-doc