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USN-5819-1: HAProxy vulnerability

23 January 2023

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

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Releases

Packages

  • 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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04

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

References

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Further reading