Lodash-es is a popular JavaScript utility library, offering a wide range of functions designed to simplify common programming tasks, specifically built for use in modern JavaScript environments that leverage ES modules. Versions 4.16.3 and 4.16.4 of lodash-es share the same core characteristics: they both provide Lodash's functionality in an ES module format, adhering to the MIT license and maintained within the main Lodash repository. The primary purpose remains consistent: providing a modular and efficient alternative to the main Lodash package, enabling developers to import only the functions they need, hence reducing bundle sizes.
However, the key difference lies in the update that occurred between the two versions. While 4.16.3 was released on October 3, 2016, version 4.16.4 followed shortly after, on October 6, 2016. This indicates that version 4.16.4 likely includes bug fixes, performance improvements, or minor adjustments, as indicated by the tight release window after the other. Developers should generally opt for the later version (4.16.4) to benefit from these improvements. Using lodash-es allows for better tree-shaking, and improved performance in applications using ES modules. Developers benefit from a concise library with utilities that cater to functional programming paradigms and common data transformations.
All the vulnerabilities related to the version 4.16.4 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.