A puma security update has been released for Debian GNU/Linux 10 to address multiple security issues.
DLA 3083-1: puma security update
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Debian LTS Advisory DLA-3083-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Abhijith PA
August 28, 2022 https://wiki.debian.org/LTS
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Package : puma
Version : 3.12.0-2+deb10u3
CVE ID : CVE-2021-29509 CVE-2021-41136 CVE-2022-23634
CVE-2022-24790
Multiple security issues have been found in puma, a web server for
ruby/rack applications.
CVE-2021-29509
Keepalive Connections Causing Denial Of Service in puma.
CVE-2021-41136
puma with a proxy which forwards HTTP header values which contain
the LF character could allow HTTP request smugggling. A client
could smuggle a request through a proxy, causing the proxy to send
a response back to another unknown client.
CVE-2022-23634
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.
CVE-2022-24790
using Puma behind a proxy that does not properly validate that the
incoming HTTP request matches the RFC7230 standard, Puma and the
frontend proxy may disagree on where a request starts and ends.
This would allow requests to be smuggled via the front-end proxy
to Puma
For Debian 10 buster, these problems have been fixed in version
3.12.0-2+deb10u3.
We recommend that you upgrade your puma packages.
For the detailed security status of puma please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/puma
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
