CVE-2022-23634
The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage.
Does this matter?
Lower severity and a low EPSS score (2.11%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 2.11% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-404
- Affected
- puma/puma · rubyonrails/rails · debian/debian linux · fedoraproject/fedora
- Source
- security-advisories@github.com
References
- https://github.com/advisories/GHSA-rmj8-8hhh-gv5hThird Party Advisory
- https://github.com/advisories/GHSA-wh98-p28r-vrc9Mitigation, Not Applicable, Third Party Advisory
- https://github.com/puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bbPatch, Third Party Advisory
- https://github.com/puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5hPatch, Third Party Advisory
- https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1Mailing List, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/
- 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/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/
- https://security.gentoo.org/glsa/202208-28Third Party Advisory
- https://www.debian.org/security/2022/dsa-5146Third Party Advisory
- https://github.com/advisories/GHSA-rmj8-8hhh-gv5hThird Party Advisory
- https://github.com/advisories/GHSA-wh98-p28r-vrc9Mitigation, Not Applicable, Third Party Advisory
- https://github.com/puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bbPatch, Third Party Advisory
- https://github.com/puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5hPatch, Third Party Advisory
- https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1Mailing List, Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00015.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/
- 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/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/
- https://security.gentoo.org/glsa/202208-28Third Party Advisory
- https://www.debian.org/security/2022/dsa-5146Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.