Lodash-es is a modularized build of the popular Lodash library, designed specifically for modern JavaScript environments leveraging ES modules. This allows developers to cherry-pick only the Lodash functions they need, resulting in smaller bundle sizes and improved application performance. Both version 3.3.0 and 3.3.1 share the same core characteristics: providing a comprehensive suite of utility functions for common programming tasks like array manipulation, object handling, function control, and string operations, all under the permissive MIT license. Lodash-es continues to be maintained by John-David Dalton, offering a reliable and well-tested foundation.
However, version 3.3.1, released shortly after 3.3.0, on February 24, 2015, represents a refinement of the previous release. While the exact nature of the changes between these minor versions isn't explicitly detailed, it's typical for such incremental updates to address bug fixes, performance optimizations, or minor compatibility tweaks identified in the initial 3.3.0 release. Developers considering lodash-es should opt for the latest available version, in this case 3.3.1, to benefit from any improvements and ensure a more stable experience. The modular design enables developers to integrate Lodash's powerful features without unnecessarily bloating their applications, making it a compelling choice for modern JavaScript projects.
All the vulnerabilities related to the version 3.3.1 of the package
Prototype Pollution in lodash
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.
Update to version 4.17.12 or later.
Regular Expression Denial of Service (ReDoS) in lodash
lodash prior to 4.7.11 is affected by: CWE-400: Uncontrolled Resource Consumption. The impact is: Denial of service. The component is: Date handler. The attack vector is: Attacker provides very long strings, which the library attempts to match using a regular expression. The fixed version is: 4.7.11.
Regular Expression Denial of Service (ReDoS) in lodash
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);
Command Injection in lodash
lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.