Debian: CVE-2024-45614: puma -- security update

Debian: CVE-2024-45614: puma -- security update

Severity

6

CVSS

(AV:N/AC:M/Au:N/C:P/I:P/A:N)

Published

09/19/2024

Created

11/12/2024

Added

11/11/2024

Modified

01/28/2025

Description

Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy set variables is affected. v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win. Users are advised to upgrade. Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level as a mitigation. Any users that are implicitly trusting the proxy defined headers for security should immediately cease doing so until upgraded to the fixed versions.

Solution(s)

• debian-upgrade-puma

References

• https://attackerkb.com/topics/cve-2024-45614
• CVE - 2024-45614
• DLA-3947-1