cve/2023/CVE-2023-22467.md

### [CVE-2023-22467](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22467)
![](https://img.shields.io/static/v1?label=Product&message=luxon&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20%3E%3D%201.0.0%2C%20%3C%201.38.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-1333%3A%20Inefficient%20Regular%20Expression%20Complexity&color=brighgreen)

### 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.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/seal-community/patches