Vulnerability Description
uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular expression is vulnerable to redos. This causes the program to hang and the CPU to idle at 100% usage while uri-js is trying to validate if the supplied URL is valid or not. To check if you're vulnerable, look for a call to `require("uri-js").parse()` where a user is able to send their own input. This affects uri-js 2.1.1 and earlier.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Garycourt | Uri-Js | <= 2.1.1 |
Related Weaknesses (CWE)
References
- https://github.com/garycourt/uri-js/issues/12ExploitIssue TrackingThird Party Advisory
- https://nodesecurity.io/advisories/100Broken LinkThird Party Advisory
- https://github.com/garycourt/uri-js/issues/12ExploitIssue TrackingThird Party Advisory
- https://nodesecurity.io/advisories/100Broken LinkThird Party Advisory
FAQ
What is CVE-2017-16021?
CVE-2017-16021 is a vulnerability with a CVSS score of 6.5 (MEDIUM). uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular...
How severe is CVE-2017-16021?
CVE-2017-16021 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-16021?
Check the references section above for vendor advisories and patch information. Affected products include: Garycourt Uri-Js.