| Package | Affected versions | Patched versions |
|---|---|---|
| luxon | ≥ 1.0.0, < 1.28.1≥ 2.0.0, < 2.5.2≥ 3.0.0, < 3.2.1 | 1.28.12.5.23.2.1 |
| luxon | ≥ 1.0.0, < 1.28.1≥ 2.0.0, < 2.5.2≥ 3.0.0, < 3.2.1 | 1.28.12.5.23.2.1 |
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 is the same bug as Moment's https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
Limit the length of the input.
There is an excellent writeup of the same issue in Moment: https://github.com/moment/moment/pull/6015#issuecomment-1152961973
DateTime.fromRFC2822("(".repeat(500000)) takes a couple minutes to complete.
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