==========================================================================
Ubuntu Security Notice USN-7031-1
September 24, 2024

puma vulnerability
==========================================================================

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

- Ubuntu 24.04 LTS

Summary:

Puma could be made to overwrite headers if it received specially crafted
network traffic.

Software Description:
- puma: threaded HTTP 1.1 server for Ruby/Rack applications

Details:

It was discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to overwrite header values
set by intermediate proxies by providing duplicate headers containing
underscore characters.

Update instructions:

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

Ubuntu 24.04 LTS
   puma                            6.4.2-4ubuntu4.3

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

References:
   https://ubuntu.com/security/notices/USN-7031-1
   CVE-2024-45614

Package Information:
   https://launchpad.net/ubuntu/+source/puma/6.4.2-4ubuntu4.3