Description
Certain input strings when passed to new Date() or Date.parse() in ecstatic node module before 1.4.0 will cause v8 to raise an exception. This leads to a crash and denial of service in ecstatic when this input is passed into the server via the If-Modified-Since header.
Remediation
References
https://nodesecurity.io/advisories/64
https://github.com/jfhbrook/node-ecstatic/pull/179
https://bugs.chromium.org/p/v8/issues/detail?id=4640
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