[DRE-maint] Bug#1008723: puma: CVE-2022-24790 - Inconsistent Interpretation of HTTP Requests

[Neil Williams]

Source: puma
Version: 5.5.2-2
Severity: important
Tags: security
X-Debbugs-Cc: codehelp at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for puma.

CVE-2022-24790[0]:
| Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for
| Ruby/Rack applications. When 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. The vulnerability has been fixed in 5.6.4 and
| 4.3.12. Users are advised to upgrade as soon as possible. Workaround:
| when deploying a proxy in front of Puma, turning on any and all
| functionality to make sure that the request matches the RFC7230
| standard.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-24790
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24790

Please adjust the affected versions in the BTS as needed.



-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.16.0-5-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled