high7.5
CVE-2023-22467
Luxon Inefficient Regular Expression Complexity vulnerability
Impact
# Impact 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 is the same bug as Moment's https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g # Workarounds Limit the length of the input. # References There is an excellent writeup of the same issue in Moment: https://github.com/moment/moment/pull/6015#issuecomment-1152961973 # Details `DateTime.fromRFC2822("(".repeat(500000))` takes a couple minutes to complete.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | luxon | >= 2.0.0, < 2.5.2 | 2.5.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Momentjs | Luxon | from 1.0.0 before 1.28.1 from 2.0.0 before 2.5.2 from 3.0.0 before 3.2.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf
- https://github.com/moment/luxon/security/advisories/GHSA-3xq5-wjfh-ppjc
- https://github.com/moment/moment/pull/6015#issuecomment-1152961973
- https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/44I3WAJKYXDLOVYRGMHAUXMIV4SPFXDZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4LIVOASKBQH7FEUI5RWM3SOHR6VK7ZZR/
- https://github.com/advisories/GHSA-3xq5-wjfh-ppjc
- https://nvd.nist.gov/vuln/detail/CVE-2023-22467