|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 `188.8.131.52`, 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, 184.108.40.206, 220.127.116.11, and 18.104.22.168. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)|
|References||DLA-3023-1, DLA-3083-1, DSA-5146-1|
Vulnerable and fixed packages
The table below lists information on source packages.
The information below is based on the following data on fixed versions.
Related issue to CVE-2022-23633 for src:rails