Lodash versions 0.2.1 and 0.2.2 represent incremental improvements in this popular JavaScript utility library, designed as a robust alternative to Underscore.js. Both versions share the core philosophy of providing performance enhancements, bug fixes, and expanded functionality. The primary difference lies in their release dates, with version 0.2.2 arriving on May 30, 2012, a few days after version 0.2.1 launched on May 24, 2012. This suggests that version 0.2.2 likely incorporates minor bug fixes or performance tweaks identified shortly after the release of 0.2.1. For developers, the consistent description across both versions emphasizes Lodash's commitment to stability and its intended role as a reliable, drop-in replacement. The absence of listed dependencies simplifies integration into existing projects. Both pointing to the same repository indicate a unified development history and source for the library. Developers choosing between these specific versions might lean toward 0.2.2 for the assumption of included minor patches. However, given their close release proximity, the functional differences are likely negligible for most use cases emphasizing Lodash's core value proposition remains unchanged: a performant, feature-rich utility belt for JavaScript development. The author information confirms the library's origin and provides resources for community engagement. Ultimately, these early versions showcase Lodash's dedication to refining and improving upon its functionality.
All the vulnerabilities related to the version 0.2.2 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.