rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.
CVE-2022-23517 - High Severity Vulnerability
Vulnerable Library - rails-html-sanitizer-1.3.0.gem
HTML sanitization for Rails applications
Library home page: https://rubygems.org/gems/rails-html-sanitizer-1.3.0.gem
Path to dependency file: /Gemfile.lock
Path to vulnerable library: /var/lib/gems/2.3.0/cache/rails-html-sanitizer-1.3.0.gem
Dependency Hierarchy: - web-console-4.0.1.gem (Root Library) - railties-6.0.1.gem - actionpack-6.0.1.gem - :x: **rails-html-sanitizer-1.3.0.gem** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.
Publish Date: 2022-12-14
URL: CVE-2022-23517
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
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
Release Date: 2022-12-14
Fix Resolution: rails-html-sanitizer - 1.4.4
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