Ubuntu Security Notice USN-5869-1
February 14, 2023
haproxy vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.10
– Ubuntu 22.04 LTS
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
Summary:
HAProxy could allow unintended access to network services.
Software Description:
– haproxy: fast and reliable load balancing reverse proxy
Details:
Bahruz Jabiyev, Anthony Gavazzi, Engin Kirda, Kaan Onarlioglu, Adi Peleg,
and Harvey Tuch discovered that HAProxy incorrectly handled empty header
names. A remote attacker could possibly use this issue to manipulate
headers and bypass certain authentication checks and restrictions.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.10:
haproxy 2.4.18-1ubuntu1.2
Ubuntu 22.04 LTS:
haproxy 2.4.18-0ubuntu1.2
Ubuntu 20.04 LTS:
haproxy 2.0.29-0ubuntu1.3
Ubuntu 18.04 LTS:
haproxy 1.8.8-1ubuntu0.13
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5869-1
CVE-2023-25725
Package Information:
https://launchpad.net/ubuntu/+source/haproxy/2.4.18-1ubuntu1.2
https://launchpad.net/ubuntu/+source/haproxy/2.4.18-0ubuntu1.2
https://launchpad.net/ubuntu/+source/haproxy/2.0.29-0ubuntu1.3
https://launchpad.net/ubuntu/+source/haproxy/1.8.8-1ubuntu0.13
