CVE-2024-21647 Information

Description

Puma is a web server for Ruby/Rack applications built for parallelism. Prior to version 6.4.2 puma exhibited incorrect behavior when parsing chunked transfer encoding bodies in a way that allowed HTTP request smuggling. Fixed versions limits the size of chunk extensions. Without this limit an attacker could cause unbounded resource (CPU network bandwidth) consumption. This vulnerability has been fixed in versions 6.4.2 and 5.6.8.

Reference

https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2 https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93