CVE-2023-22467
luxon.js inefficient regular expression complexity vulnerability
- State
- Published
- Severity
- 7.5 High
- Published
- Jan 4, 2023
- Updated
- Feb 13, 2025
- Reserved
- Dec 29, 2022
Description
Luxon is a library for working with dates and times in JavaScript. On the 1.x branch prior to 1.38.1, the 2.x branch prior to 2.5.2, and the 3.x branch on 3.2.1, Luxon's `DateTime.fromRFC2822() has quadratic (N^2) complexity on some specific inputs. This causes a noticeable slowdown for inputs with lengths above 10k characters. Users providing untrusted data to this method are therefore vulnerable to (Re)DoS attacks. This issue also appears in Moment as CVE-2022-31129. Versions 1.38.1, 2.5.2, and 3.2.1 contain patches for this issue. As a workaround, limit the length of the input.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-1333 Inefficient Regular Expression Complexity
Affected Products
| Product | Versions |
|---|---|
luxonmoment |
|
References
- https://github.com/moment/luxon/security/advisories/GHSA-3xq5-wjfh-ppjc
- https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
- https://github.com/moment/moment/pull/6015#issuecomment-1152961973
- https://github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4LIVOASKBQH7FEUI5RWM3SOHR6VK7ZZR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/44I3WAJKYXDLOVYRGMHAUXMIV4SPFXDZ/
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