Lodash version 3.6.0 represents an incremental update to the widely-used JavaScript utility library, building upon the foundation laid by version 3.5.0. Both versions share the same core principles: providing a modern build of modular utilities designed to simplify common programming tasks. Developed under the MIT license and maintained in a GitHub repository, Lodash strives to offer robust and performant solutions for data manipulation, function handling, and more. Both versions are created by John-David Dalton, who remains the author and maintainer.
The key difference between the two lies in the specific bug fixes, performance enhancements, and potentially new features introduced in version 3.6.0. While the description remains consistent, developers upgrading from 3.5.0 should anticipate subtle improvements and optimizations under the hood. Typically, point releases like this focus on refining existing functionality rather than introducing groundbreaking changes. Lodash helps developers write more concise and readable code, reducing boilerplate and improving overall code maintainability. This library provides tools for array manipulation, object handling, function composition, and more, saving valuable development time and effort. Its modular design allows developers to cherry-pick only the utilities they need, minimizing the bundle size of their applications. For anyone working with JavaScript, Lodash is a valuable asset that streamlines development and enhances code quality. Before updating from 3.5.0 to 3.6.0, it's advisable to consult the detailed changelog or release notes available on the Lodash GitHub repository to fully understand the specifics of the update to ensure compatibility.
All the vulnerabilities related to the version 3.6.0 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.
Prototype Pollution in lodash
Versions of lodash before 4.17.5 are vulnerable to prototype pollution.
The vulnerable functions are 'defaultsDeep', 'merge', and 'mergeWith' which allow a malicious user to modify the prototype of Object via __proto__ causing the addition or modification of an existing property that will exist on all objects.
Update to version 4.17.5 or later.
Prototype Pollution in lodash
Versions of lodash before 4.17.11 are vulnerable to prototype pollution.
The vulnerable functions are 'defaultsDeep', 'merge', and 'mergeWith' which allow 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 4.17.11 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.