USN-4321-1: HAProxy vulnerability

USN-4321-1: HAProxy vulnerability

haproxy vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 19.10
• Ubuntu 18.04 LTS

Summary

HAProxy could be made to execute arbitrary code if it received a specially crafted HTTP/2 request.

Software Description

• haproxy – fast and reliable load balancing reverse proxy

Details

Felix Wilhelm discovered that HAProxy incorrectly handled certain HTTP/2 requests.
An attacker could possibly use this to execute arbitrary code.

Update instructions

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

Ubuntu 19.10

haproxy – 2.0.5-1ubuntu0.4

Ubuntu 18.04 LTS

haproxy – 1.8.8-1ubuntu0.10

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2020-11100

Source: USN-4321-1: HAProxy vulnerability