Versions of lodash before 4.17.12 are vulnerable to Prototype Pollution. The function defaultsDeep allows a malicious user to modify the prototype of Object via {constructor: {prototype: {...}}} causing the addition or modification of an existing property that will exist on all objects.
All versions of package lodash prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
Steps to reproduce (provided by reporter Liyuan Chen):
var lo = require('lodash');
function build_blank(n) {
var ret = "1"
for (var i = 0; i < n; i++) {
ret += " "
}
return ret + "1";
}
var s = build_blank(50000) var time0 = Date.now();
lo.trim(s)
var time_cost0 = Date.now() - time0;
console.log("time_cost0: " + time_cost0);
var time1 = Date.now();
lo.toNumber(s) var time_cost1 = Date.now() - time1;
console.log("time_cost1: " + time_cost1);
var time2 = Date.now();
lo.trimEnd(s);
var time_cost2 = Date.now() - time2;
console.log("time_cost2: " + time_cost2);
This PR contains the following updates:
4.17.15
->4.17.21
GitHub Vulnerability Alerts
CVE-2021-23337
lodash
versions prior to 4.17.21 are vulnerable to Command Injection via the template function.CVE-2019-10744
Versions of
lodash
before 4.17.12 are vulnerable to Prototype Pollution. The functiondefaultsDeep
allows a malicious user to modify the prototype ofObject
via{constructor: {prototype: {...}}}
causing the addition or modification of an existing property that will exist on all objects.Recommendation
Update to version 4.17.12 or later.
CVE-2020-28500
All versions of package lodash prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the
toNumber
,trim
andtrimEnd
functions.Steps to reproduce (provided by reporter Liyuan Chen):
Release Notes
lodash/lodash (lodash)
### [`v4.17.21`](https://togithub.com/lodash/lodash/compare/4.17.20...4.17.21) [Compare Source](https://togithub.com/lodash/lodash/compare/4.17.20...4.17.21) ### [`v4.17.20`](https://togithub.com/lodash/lodash/compare/4.17.19...4.17.20) [Compare Source](https://togithub.com/lodash/lodash/compare/4.17.19...4.17.20) ### [`v4.17.19`](https://togithub.com/lodash/lodash/compare/4.17.16...4.17.19) ### [`v4.17.16`](https://togithub.com/lodash/lodash/compare/4.17.15...4.17.16) [Compare Source](https://togithub.com/lodash/lodash/compare/4.17.15...4.17.16)Configuration
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