Lodash-es is a popular JavaScript utility library offering a wide range of functions for common programming tasks, now exported specifically as ES modules for modern JavaScript development. This allows for better tree-shaking and smaller bundle sizes in projects utilizing module bundlers like Webpack or Parcel.
Comparing versions 4.17.3 and 4.17.4, the differences appear subtle but still important to note for developers. The core functionality and features of Lodash remain consistent between the two. The critical difference is the release date. Version 4.17.4 was released on December 31, 2016, while version 4.17.3 was released a week prior, on December 24, 2016. Although unlisted as differences within the JSON data, this week gap suggests that version 4.17.4 likely includes bug fixes, performance improvements, or minor adjustments over its predecessor. For developers, version 4.17.4 is likely the preferred choice if there were potentially addressed bugs or if there is a need for the latest version of the package. Lodash-es continues to be a powerful tool for simplifying JavaScript code, and choosing the latest stable release is standard practice for receiving the most up-to-date and reliable experience. The library's MIT license ensures its free use in various projects, and development is still driven by John-David Dalton, a recognized figure in the JavaScript community.
All the vulnerabilities related to the version 4.17.4 of the package
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.
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.
Prototype Pollution in lodash
Versions of lodash prior to 4.17.19 are vulnerable to Prototype Pollution. The functions pick, set, setWith, update, updateWith, and zipObjectDeep allow a malicious user to modify the prototype of Object if the property identifiers are user-supplied. Being affected by this issue requires manipulating objects based on user-provided property values or arrays.
This vulnerability causes the addition or modification of an existing property that will exist on all objects and may lead to Denial of Service or Code Execution under specific circumstances.
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.