USN-6294-2: HAProxy vulnerability

17 August 2023

HAProxy could allow unintended access to network services.

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Releases

Packages

  • haproxy - fast and reliable load balancing reverse proxy

Details

USN-6294-1 fixed vulnerabilities in HAProxy. This update provides the
corresponding updates for Ubuntu 20.04 LTS.

Original advisory details:

Ben Kallus discovered that HAProxy incorrectly handled empty Content-Length
headers. A remote attacker could possibly use this issue to manipulate the
payload and bypass certain restrictions.

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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 20.04

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

References

Related notices

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