CVE-2023-22467

luxon.js inefficient regular expression complexity vulnerability

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.36%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: moment luxon
Published at:
Updated at:

References

Link Tags
https://github.com/moment/luxon/security/advisories/GHSA-3xq5-wjfh-ppjc third party advisory
https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g third party advisory not applicable
https://github.com/moment/moment/pull/6015#issuecomment-1152961973 third party advisory patch
https://github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf third party advisory patch
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/

Frequently Asked Questions

What is the severity of CVE-2023-22467?
CVE-2023-22467 has been scored as a high severity vulnerability.
How to fix CVE-2023-22467?
To fix CVE-2023-22467, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-22467 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22467 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22467?
CVE-2023-22467 affects moment luxon.
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