CVE-2023-40175 – puma

Package

Manager: gem
Name: puma
Vulnerable Version: >=0 <5.6.7 || >=6.0.0 <6.3.1

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.004 pctl0.59915

Details

Puma HTTP Request/Response Smuggling vulnerability ### Impact Prior to version 6.3.1, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling. The following vulnerabilities are addressed by this advisory: * Incorrect parsing of trailing fields in chunked transfer encoding bodies * Parsing of blank/zero-length Content-Length headers ### Patches The vulnerability has been fixed in 6.3.1 and 5.6.7. ### Workarounds No known workarounds. ### References [HTTP Request Smuggling](https://portswigger.net/web-security/request-smuggling) ### For more information If you have any questions or comments about this advisory: Open an issue in [Puma](https://github.com/puma/puma) See our [security policy](https://github.com/puma/puma/security/policy)

Metadata

Created: 2023-08-18T21:50:05Z
Modified: 2023-08-24T22:34:11Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/08/GHSA-68xg-gqqm-vgj8/GHSA-68xg-gqqm-vgj8.json
CWE IDs: ["CWE-444"]
Alternative ID: GHSA-68xg-gqqm-vgj8
Finding: F110
Auto approve: 1