Ubuntu 23.04 USN-6530-1 moderate: HAProxy sensitive info attack

ubuntu

December 5, 2023

HAProxy could be made to expose sensitive information.

Summary

HAProxy could be made to expose sensitive information.

Software Description:

- haproxy: fast and reliable load balancing reverse proxy

Details:

It was discovered that HAProxy incorrectly handled URI components

containing the hash character (#). A remote attacker could possibly use

this issue to obtain sensitive information, or to bypass certain path_end

rules.

Topics Covered

security advisory moderate remote access ubuntu haproxy sensitive info

Update Instructions

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

Ubuntu 23.04:
   haproxy                         2.6.9-1ubuntu1.2

Ubuntu 22.04 LTS:
   haproxy                         2.4.22-0ubuntu0.22.04.3

Ubuntu 20.04 LTS:
   haproxy                         2.0.31-0ubuntu0.3

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