HTTP Request Smuggling Affecting puma package, versions <5.6.8 >=6.0.0, <6.4.2
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Test your applications- Snyk ID SNYK-RUBY-PUMA-6146928
- published 9 Jan 2024
- disclosed 8 Jan 2024
- credit Bartek Nowotarski
Introduced: 8 Jan 2024
CVE-2024-21647 Open this link in a new tabHow to fix?
Upgrade puma to version 5.6.8, 6.4.2 or higher.
Overview
puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly concurrent Ruby implementations such as Rubinius and JRuby as well as as providing process worker support to support CRuby well.
Affected versions of this package are vulnerable to HTTP Request Smuggling due to improper handling of chunked transfer encoding bodies in HTTP messages that do not limit the size of message chunk extensions. An attacker can cause uncontrolled resource consumption, potentially leading to a denial of service of the targeted server.