=========================================================================Ubuntu Security Notice USN-5819-1
January 23, 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

Summary:

HAProxy could be made to stop responding if it received specially crafted
network traffic.

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

Details:

It was discovered that HAProxy incorrectly handled certain messages. A
remote attacker could possibly use this issue to cause HAProxy to stop
responding, resulting in a denial of service.

Update instructions:

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

Ubuntu 22.10:
   haproxy                         2.4.18-1ubuntu1.1

Ubuntu 22.04 LTS:
   haproxy                         2.4.18-0ubuntu1.1

Ubuntu 20.04 LTS:
   haproxy                         2.0.29-0ubuntu1.1

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

References:
   https://ubuntu.com/security/notices/USN-5819-1
   CVE-2023-0056

Package Information:
   https://launchpad.net/ubuntu/+source/haproxy/2.4.18-1ubuntu1.1
   https://launchpad.net/ubuntu/+source/haproxy/2.4.18-0ubuntu1.1
   https://launchpad.net/ubuntu/+source/haproxy/2.0.29-0ubuntu1.1

Ubuntu 5819-1: HAProxy vulnerability

January 23, 2023
HAProxy could be made to stop responding if it received specially crafted network traffic.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: haproxy 2.4.18-1ubuntu1.1 Ubuntu 22.04 LTS: haproxy 2.4.18-0ubuntu1.1 Ubuntu 20.04 LTS: haproxy 2.0.29-0ubuntu1.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5819-1

CVE-2023-0056

Severity
January 23, 2023

Package Information

https://launchpad.net/ubuntu/+source/haproxy/2.4.18-1ubuntu1.1 https://launchpad.net/ubuntu/+source/haproxy/2.4.18-0ubuntu1.1 https://launchpad.net/ubuntu/+source/haproxy/2.0.29-0ubuntu1.1

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