Advisories for Npm/Ecstatic package

ecstatic have a denial of service vulnerability. Successful exploitation could lead to crash of an application.

Versions of ecstatic prior to 4.1.2, 3.3.2 or 2.2.2 are vulnerable to Open Redirect. The package fails to validate redirects, allowing attackers to craft requests that result in an HTTP 301 redirect to any other domains. Recommendation If using ecstatic 4.x, upgrade to 4.1.2 or later. If using ecstatic 3.x, upgrade to 3.3.2 or later. If using ecstatic 2.x, upgrade to 2.2.2 or later.

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.

A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.

A payload of kB causes a lag of 1 second, a payload of kB causes a lag of 3 seconds, a payload of kB caused the server to crash.

Certain input strings when passed to new Date() or Date.parse() 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.