puma: Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications
CVE-2022-24790 is fixed in puma on 1 platform, first by DEBIAN-CVE-2022-24790, released March 30, 2022. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| puma · Debian 12.15 (bookworm) | 5.6.4-1 | DEBIAN-CVE-2022-24790 | Mar 30, 2022 |
| puma · Debian 13.5 (trixie) | 5.6.4-1 | DEBIAN-CVE-2022-24790 | Mar 30, 2022 |
| puma · Debian 14 | 5.6.4-1 | DEBIAN-CVE-2022-24790 | Mar 30, 2022 |
| puma · Ubuntu 20.04 LTS (focal) | 3.12.4-1ubuntu2+esm1 | puma 3.12.4-1ubuntu2+esm1 | Jan 8, 2024 |
| puma · Ubuntu 22.04.1 LTS (jammy) | 5.5.2-2ubuntu2+esm1 | puma 5.5.2-2ubuntu2+esm1 | Jan 8, 2024 |
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