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Ubuntu Security Notice USN-7067-1
October 14, 2024

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

- Ubuntu 18.04 LTS

Summary:

HAProxy could be made to crash or run programs if it received
specially crafted network traffic.

Software Description:
- haproxy: fast and reliable load balancing reverse proxy

Details:

It was discovered that HAProxy did not properly limit the creation of new
HTTP/2 streams. A remote attacker could possibly use this issue to cause
HAProxy to consume excessive resources, leading to a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS
  haproxy                         1.8.8-1ubuntu0.13+esm3
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7067-1
  CVE-2023-44487