[USN-7431-2] HAProxy vulnerability

[Marc Deslauriers]

==========================================================================
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

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