GHSA-rmj8-8hhh-gv5h

Dashboard / Vulnerabilities / GHSA-rmj8-8hhh-gv5h

GHSA-rmj8-8hhh-gv5h

Summary: Puma used with Rails may lead to Information Exposure

Details: ### Impact 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. From Rails: > Under certain circumstances response bodies will not be closed, for example a bug in a webserver[1] or a bug in a Rack middleware. In the event a response is not notified of a close, ActionDispatch::Executor will not know to reset thread local state for the next request. This can lead to data being leaked to subsequent requests, especially when interacting with ActiveSupport::CurrentAttributes. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. ### Patches 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. See: https://github.com/advisories/GHSA-wh98-p28r-vrc9 for details about the rails vulnerability Upgrading to a patched Rails _or_ Puma version fixes the vulnerability. ### Workarounds Upgrade to Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. The [Rails CVE](https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1) includes a middleware that can be used instead. ### References * Rails CVE: [CVE-2022-23633](https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1) ### For more information If you have any questions or comments about this advisory: * Open an issue in [puma](https://github.com/puma/puma) * See our [security policy](https://github.com/puma/puma/security/policy)

References: https://github.com/puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5h, https://nvd.nist.gov/vuln/detail/CVE-2022-23634, https://github.com/puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bb, https://github.com/advisories/GHSA-rmj8-8hhh-gv5h, https://github.com/advisories/GHSA-wh98-p28r-vrc9, https://github.com/puma/puma, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2022-23634.yml, https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1, https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html, https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5, https://lists.fedoraproject.org/archives/list/[email protected]/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G, https://lists.fedoraproject.org/archives/list/[email protected]/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB, https://security.gentoo.org/glsa/202208-28, https://www.debian.org/security/2022/dsa-5146