Description
The semver package before 4.3.2 for Node.js allows attackers to cause a denial of service (CPU consumption) via a long version string, aka a "regular expression denial of service (ReDoS)."
Remediation
References
http://www.openwall.com/lists/oss-security/2016/04/20/11
http://www.securityfocus.com/bid/86957
https://nodesecurity.io/advisories/31