Headline

CVE-2020-36649: Avoid ReDOS on float dynamic typing (#779) · mholt/PapaParse@235a127

A vulnerability was found in mholt PapaParse up to 5.1.x. It has been classified as problematic. Affected is an unknown function of the file papaparse.js. The manipulation leads to inefficient regular expression complexity. Upgrading to version 5.2.0 is able to address this issue. The name of the patch is 235a12758cd77266d2e98fd715f53536b34ad621. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218004.

2 years ago

CVE

Open in Source

#vulnerability #js

@@ -1006,7 +1006,7 @@ License: MIT

// One goal is to minimize the use of regular expressions…

var MAX_FLOAT = Math.pow(2, 53);

var MIN_FLOAT = -MAX_FLOAT;

var FLOAT = /^\s*-?(\d*\.?\d+|\d+\.?\d*)(e[-+]?\d+)?\s*$/i;

var FLOAT = /^\s*-?(\d+\.?|\.\d+|\d+\.\d+)(e[-+]?\d+)?\s*$/;

var ISO_DATE = /(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([±][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([±][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([±][0-2]\d:[0-5]\d|Z))/;

var self = this;

var _stepCounter = 0; // Number of times step was called (number of rows parsed)