# puma 3.12.4-1ubuntu2+esm1: puma 3.12.4-1ubuntu2+esm1 for Ubuntu 20.04 LTS (focal)

puma 3.12.4-1ubuntu2+esm1, released January 8, 2024, fixes 6 CVEs in puma. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-focal-puma-3.12.4-1ubuntu2-esm1
- Platform: Linux
- Released: Jan 8, 2024
- Priority: High (Closes CVE-2022-24790, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [puma](https://patchblox.com/security/data/product/linux/puma.md) | Ubuntu 20.04 LTS (focal) | 3.12.4-1ubuntu2+esm1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-24790](https://patchblox.com/security/data/cve/CVE-2022-24790.md) | High | puma: Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications | 7.5 | 0.0219 |  |
| [CVE-2024-21647](https://patchblox.com/security/data/cve/CVE-2024-21647.md) | High | rubygem-puma: unbounded resource consumption due to invalid parsing of chunked encoding in HTTP/1.1 can lead to | 7.5 | 0.0096 |  |
| [CVE-2023-40175](https://patchblox.com/security/data/cve/CVE-2023-40175.md) | High | puma: Puma is a Ruby/Rack web server built for parallelism | 9.8 | 0.0085 |  |
| [CVE-2020-11076](https://patchblox.com/security/data/cve/CVE-2020-11076.md) | Routine | puma: In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-e... | n/a | 0.0409 |  |
| [CVE-2020-11077](https://patchblox.com/security/data/cve/CVE-2020-11077.md) | Routine | puma: In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the proxy to sen... | n/a | 0.0288 |  |
| [CVE-2022-23634](https://patchblox.com/security/data/cve/CVE-2022-23634.md) | Routine | puma: Puma is a Ruby/Rack web server built for parallelism | 5.9 | 0.0211 |  |

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