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Ubuntu: USN-6682-1 (CVE-2022-24790): Puma vulnerabilities

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Ubuntu: USN-6682-1 (CVE-2022-24790): Puma vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
03/30/2022
Created
03/09/2024
Added
03/08/2024
Modified
11/15/2024

Description

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.

Solution(s)

  • ubuntu-pro-upgrade-puma

References

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