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Ubuntu Security Notice USN-7431-2
April 23, 2025

haproxy vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04

Summary:

HAProxy could be made to crash or run programs if it received specially
crafted network traffic.

Software Description:
- haproxy: fast and reliable load balancing reverse proxy

Details:

USN-7431-1 fixed a vulnerability in HAProxy. This update provides the
corresponding update for Ubuntu 25.04.

Original advisory details:

 Aleandro Prudenzano and Edoardo Geraci discovered that HAProxy incorrectly
 handled certain uncommon configurations that replace multiple short
 patterns with a longer one. A remote attacker could use this issue to
 cause HAProxy to crash, resulting in a denial of service, or possibly
 execute arbitrary code.

Update instructions:

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

Ubuntu 25.04
  haproxy                         3.0.8-1ubuntu1.1

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

References:
  https://ubuntu.com/security/notices/USN-7431-2
  https://ubuntu.com/security/notices/USN-7431-1
  CVE-2025-32464

Package Information:
  https://launchpad.net/ubuntu/+source/haproxy/3.0.8-1ubuntu1.1