1. Ubuntu Security Notices
  2. USN-4174-1

USN-4174-1: HAproxy vulnerability

Publication date

5 November 2019

Overview

HAproxy would allow unintended access if ii received specially crafted HTTP request.

Releases

Packages

  • haproxy - fast and reliable load balancing reverse proxy

Details

It was discovered that HAproxy incorrectly handled certain HTTP requests.
An attacker could possibly use this issue to a privilege escalation
(Request Smuggling).

It was discovered that HAproxy incorrectly handled certain HTTP requests.
An attacker could possibly use this issue to a privilege escalation
(Request Smuggling).

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
19.10 eoan haproxy –  2.0.5-1ubuntu0.2
19.04 disco haproxy –  1.8.19-1ubuntu1.2
18.04 bionic haproxy –  1.8.8-1ubuntu0.7
16.04 xenial haproxy –  1.6.3-1ubuntu0.3

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.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›