CVE-2022-23516 (High) detected in loofah-2.18.0.gem
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CVE-2022-23516 - High Severity Vulnerability
Vulnerable Library - loofah-2.18.0.gem
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri.
Loofah excels at HTML sanitization (XSS prevention). It includes some nice HTML sanitizers, which are based on HTML5lib's safelist, so it most likely won't make your codes less secure. (These statements have not been evaluated by Netexperts.)
ActiveRecord extensions for sanitization are available in the loofah-activerecord gem.
Library home page: https://rubygems.org/gems/loofah-2.18.0.gem
Path to dependency file: /Gemfile.lock
Path to vulnerable library: /home/wss-scanner/.gem/ruby/2.7.0/cache/loofah-2.18.0.gem
Dependency Hierarchy:
- actionview-6.0.5.gem (Root Library)
- rails-html-sanitizer-1.4.2.gem
- ❌ loofah-2.18.0.gem (Vulnerable Library)
- rails-html-sanitizer-1.4.2.gem
Found in base branch: master
Vulnerability Details
Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah >= 2.2.0, < 2.19.1 uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1. Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.
Publish Date: 2022-12-14
URL: CVE-2022-23516
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
Suggested Fix
Type: Upgrade version
Origin: GHSA-3x8r-x6xp-q4vm
Release Date: 2022-12-14
Fix Resolution: loofah - 2.19.1