moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. Affected versions of moment were found to use an inefficient parsing algorithm. Specifically using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs. Users may notice a noticeable slowdown is observed with inputs above 10k characters. Users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks. The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. Users are advised to upgrade. Users unable to upgrade should consider limiting date lengths accepted from user input.
CVE-2022-31129 - High Severity Vulnerability
Parse, validate, manipulate, and display dates
Library home page: https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.20.1/moment.js
Path to dependency file: /node_modules/js-base64/.attic/test-moment/index.html
Path to vulnerable library: /node_modules/js-base64/.attic/test-moment/./moment.js
Dependency Hierarchy: - :x: **moment-2.20.1.js** (Vulnerable Library)
Found in HEAD commit: 535ebefeb7ceab2131c4c881e0f0a569995bb6ef
Found in base branch: master
moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. Affected versions of moment were found to use an inefficient parsing algorithm. Specifically using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs. Users may notice a noticeable slowdown is observed with inputs above 10k characters. Users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks. The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. Users are advised to upgrade. Users unable to upgrade should consider limiting date lengths accepted from user input.
Publish Date: 2022-07-06
URL: CVE-2022-31129
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.Type: Upgrade version
Origin: https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
Release Date: 2022-07-06
Fix Resolution: moment - 2.29.4
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