[USN-6399-1] Puma vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Wed Sep 27 13:10:00 UTC 2023

Ubuntu Security Notice USN-6399-1
September 27, 2023

puma vulnerability

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

- Ubuntu 23.04


Puma could allow HTTP Request Smuggling attacks.

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


It was discovered that Puma incorrectly handled parsing certain headers. A
remote attacker could possibly use this issue to perform an HTTP request
Smuggling attack.

Update instructions:

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

Ubuntu 23.04:
   puma                            5.6.5-3ubuntu1.1

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


Package Information:

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