1. Ubuntu Security Notices
  2. USN-6530-2

USN-6530-2: HAProxy vulnerability

Publication date

23 July 2024

Overview

HAProxy could be made to expose sensitive information.

Releases

Packages

  • haproxy - fast and reliable load balancing reverse proxy

Details

Seth Manesse and Paul Plasil discovered that HAProxy incorrectly handled
URI components containing the hash character (#). A remote attacker could
possibly use this issue to obtain sensitive information, or to bypass
certain path_end rules.

Seth Manesse and Paul Plasil discovered that HAProxy incorrectly handled
URI components containing the hash character (#). A remote attacker could
possibly use this issue to obtain sensitive information, or to bypass
certain path_end rules.

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
18.04 bionic haproxy –  1.8.8-1ubuntu0.13+esm2  
16.04 xenial haproxy –  1.6.3-1ubuntu0.3+esm1  

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References

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