CVE-2022-23634

Description

Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.

References

https://www.debian.org/security/2022/dsa-5146

https://security.gentoo.org/glsa/202208-28

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/

https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html

https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html

https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1

https://github.com/puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5h

https://github.com/puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bb

https://github.com/advisories/GHSA-wh98-p28r-vrc9

https://github.com/advisories/GHSA-rmj8-8hhh-gv5h

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3