Lodash-es is a popular JavaScript utility library offering a comprehensive suite of functions designed to simplify common programming tasks. Version 4.5.0 follows the previous stable release, version 4.4.0, with a minor version increment indicating potentially new features, bug fixes, or performance improvements, while maintaining backward compatibility. Both versions share the same core characteristics, including being distributed as ES modules, making them compatible with modern JavaScript module bundlers and workflows. The MIT license ensures broad usability in various projects, both personal and commercial. The primary author remains John-David Dalton, a well-known figure in the JavaScript community.
Developers considering an upgrade from 4.4.0 to 4.5.0 should investigate the specific changes introduced in this release. While the provided data doesn't detail the exact modifications, a review of the library's changelog or release notes on the official Lodash repository on GitHub is essential. Common improvements included in such minor releases often encompass enhanced performance of certain utility functions, resolutions for reported bugs affecting specific use cases, or refinements to the module structure for better tree-shaking capabilities. The release dates indicate a relatively short time span between the two versions, suggesting a focused effort on addressing immediate needs or introducing quickly developed enhancements. Ultimately, the decision to upgrade depends on whether the particular fixes or improvements offered by version 4.5.0 are relevant to the developer's project and the specific Lodash functions being utilized.
All the vulnerabilities related to the version 4.5.0 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.
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 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.