CVE-2022-23634
HIGHPuma < 4.3.11 and 5.0.0-5.6.2 - Information Exposure via Response Body Handling
Title source: llmDescription
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 (12)
Core 12
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/puma/puma/security/advisories/GHSA-rmj8-8hhh-gv5h
Patch, Third Party Advisory x_refsource_misc
https://github.com/puma/puma/commit/b70f451fe8abc0cff192c065d549778452e155bb
Third Party Advisory x_refsource_misc
https://github.com/advisories/GHSA-rmj8-8hhh-gv5h
Mitigation, Not Applicable, Third Party Advisory x_refsource_misc
https://github.com/advisories/GHSA-wh98-p28r-vrc9
Mailing List, Mitigation, Patch, Third Party Advisory x_refsource_misc
https://groups.google.com/g/ruby-security-ann/c/FkTM-_7zSNA/m/K2RiMJBlBAAJ?utm_medium=email&utm_source=footer&pli=1
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2022/dsa-5146
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202208-28
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/
Scores
CVSS v3
8.0
EPSS
0.0048
EPSS Percentile
65.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-200
CWE-404
Status
published
Products (9)
debian/debian_linux
9.0
debian/debian_linux
10.0
debian/debian_linux
11.0
fedoraproject/fedora
35
fedoraproject/fedora
36
fedoraproject/fedora
37
puma/puma
< 4.3.11
rubygems/puma
5.0.0 - 5.6.2RubyGems
rubyonrails/rails
5.0.0 - 5.2.6.2
Published
Feb 11, 2022
Tracked Since
Feb 18, 2026