USN-5042-1: HAProxy vulnerabilities

Releases

• Ubuntu 21.04
• Ubuntu 20.04 LTS

Packages

• haproxy - fast and reliable load balancing reverse proxy

Details

It was discovered that HAProxy incorrectly handled the HTTP/2 protocol. A
remote attacker could possibly use this issue to bypass restrictions.

Update instructions

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

Ubuntu 21.04

• haproxy - 2.2.9-1ubuntu0.1

Ubuntu 20.04

• haproxy - 2.0.13-2ubuntu0.2

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

References

• https://launchpad.net/bugs/1940314