1. Ubuntu Security Notices
  2. USN-5042-1

USN-5042-1: HAProxy vulnerabilities

Publication date

17 August 2021

Overview

Several security issues were fixed in HAProxy.

Releases

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.

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

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
21.04 hirsute haproxy –  2.2.9-1ubuntu0.1
20.04 focal haproxy –  2.0.13-2ubuntu0.2

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References

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