[SECURITY] [DLA 3083-1] puma security update

Debian LTS Advisory DLA-3083-1 [email protected]
https://www.debian.org/lts/security/ Abhijith PA
August 28, 2022 https://wiki.debian.org/LTS

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