Lodash version 0.5.0 marks an evolution of the popular JavaScript utility library, building upon the foundation laid by version 0.4.2. Both releases aim to be drop-in replacements for Underscore.js, offering developers enhanced performance, crucial bug fixes, and a suite of additional features to streamline everyday coding tasks. A key distinction lies in the author's email address, updated from 'john@fusejs.com' in 0.4.2 to 'john.david.dalton@gmail.com' in 0.5.0, a minor change, but notable for those tracking author contact information.
The core value proposition for developers remains consistent: Lodash provides a comprehensive toolkit of functions to manipulate arrays, objects, strings, and more, simplifying common tasks and promoting cleaner, more maintainable code. The shift to version 0.5.0 introduced further performance enhancements and bug resolutions, solidifying Lodash's reputation for reliability and efficiency. For developers seeking a robust, well-tested utility library to accelerate their JavaScript development, Lodash 0.5.0 presents a compelling upgrade from its predecessor, 0.4.2, primarily due to its improved stability and refined feature set. The consistent repository URL across both versions ensures easy access to the source code and contribution opportunities, reiforcing lodash status as a dependable and community-driven project.
All the vulnerabilities related to the version 0.5.0 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.