CVE-2023-40175 (High) detected in puma-3.12.6.gem

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CVE-2023-40175 - High Severity Vulnerability

Vulnerable Library - puma-3.12.6.gem

Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly concurrent Ruby implementations such as Rubinius and JRuby as well as as providing process worker support to support CRuby well.

Library home page: https://rubygems.org/gems/puma-3.12.6.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /Gemfile.lock

Dependency Hierarchy:

• ❌ puma-3.12.6.gem (Vulnerable Library)

Found in HEAD commit: 81f8b3f5658022f994993a18a7653667705b7f6e

Found in base branch: master

Vulnerability Details

Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling. Severity of this issue is highly dependent on the nature of the web site using puma is. This could be caused by either incorrect parsing of trailing fields in chunked transfer encoding bodies or by parsing of blank/zero-length Content-Length headers. Both issues have been addressed and this vulnerability has been fixed in versions 6.3.1 and 5.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Publish Date: 2023-08-18

URL: CVE-2023-40175

CVSS 3 Score Details (7.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.cve.org/CVERecord?id=CVE-2023-40175

Release Date: 2023-08-18

Fix Resolution: puma - 5.6.7,6.3.1

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⛑️ Automatic Remediation will be attempted for this issue.