==========================================================================
Ubuntu Security Notice USN-6530-1
December 05, 2023

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

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

- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

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.

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.

References:
  https://ubuntu.com/security/notices/USN-6530-1
  CVE-2023-45539

Package Information:
  https://launchpad.net/ubuntu/+source/haproxy/2.6.9-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/haproxy/2.4.22-0ubuntu0.22.04.3
  https://launchpad.net/ubuntu/+source/haproxy/2.0.31-0ubuntu0.3

Attachment: OpenPGP_signature.asc
Description: OpenPGP digital signature



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