CVE-2017-16021: Medium severity uri-js vulnerability
Affected versions of uri-js is susceptible to a regular expression denial of service vulnerability when user input is sent to the .parse() method.
Recommendation
Update to v3.0.0 or later.
Other sources
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2017-16021?
CVE-2017-16021 is classified as a regular expression denial of service vulnerability.
How do I fix CVE-2017-16021?
To fix CVE-2017-16021, update the uri-js package to version 3.0.0 or later.
Which versions of uri-js are affected by CVE-2017-16021?
CVE-2017-16021 affects versions of uri-js up to and including 2.1.1.
What function in uri-js is vulnerable according to CVE-2017-16021?
The vulnerability in CVE-2017-16021 arises when user input is processed by the .parse() method.
Is CVE-2017-16021 applicable only to certain environments?
CVE-2017-16021 is applicable to all implementations of uri-js in Node.js environments.