Lodash version 2.2.1 represents a minor update to the widely used JavaScript utility library, building upon the foundation established by version 2.2.0. Both versions share the same core objective: to provide developers with a comprehensive suite of tools designed to enhance code consistency, facilitate customization, optimize performance, and offer a range of convenient extras. The library, licensed under the MIT license, remains committed to its open-source ethos, inviting contributions and fostering a collaborative community.
Functionally, developers familiar with 2.2.0 will find a seamless transition to 2.2.1. Under the hood, version 2.2.1likely includes bug fixes, performance improvements, and potentially minor refinements to existing functions. While the description remains consistent, suggesting no significant feature additions, the update signifies a commitment to stability and refinement. The release date difference, a few days, underscores the rapid iteration and responsiveness to user feedback characteristic of the Lodash project.
For developers, choosing between 2.2.0 and 2.2.1 boils down to a trade-off between immediate familiarity and the benefits of potentially enhanced stability. Staying current with the latest minor version is generally recommended to benefit from the most up-to-date fixes and optimizations and ensures greater confidence in the library's reliability.
All the vulnerabilities related to the version 2.2.1 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.