Lodash-es provides the popular Lodash utility library as ES modules, making it easily importable and usable in modern JavaScript projects leveraging module bundlers like Webpack or Rollup. Version 4.17.6 builds upon the foundation of version 4.17.5, offering developers a refined and potentially more performant experience. Both versions maintain the same core description and licensing under the MIT license, ensuring ease of use and integration within various projects.
A key difference lies in the release date, with version 4.17.6 arriving on March 7, 2018, after version 4.17.5 that was released on February 4, 2018. This indicates bug fixes and improvements made in the newer release. Inspection of the Lodash repository and changelogs would provide extra information about particular issues addressed. The 'dist' object in version 4.17.6 provides specifics absent in the previous version: it contains 645 files and unpacks into a size of 627,993 bytes, allowing advanced users to more accurately asses the bundle size implications.
For developers, Lodash-es offers a comprehensive suite of functions for manipulating arrays, objects, strings, and other data structures, promoting cleaner, more concise code. Whether you're performing complex data transformations, simplifying common tasks, or improving code readability, Lodash-es provides a valuable toolkit that reduces boilerplate and enhances productivity. Choosing between these versions depends on your specific needs. If you prioritize stability and have no known issues with 4.17.5, it may be sufficient. Alternatively, upgrading to 4.17.6 is generally recommended to benefit from the accumulated bug fixes and performance improvements .
All the vulnerabilities related to the version 4.17.6 of the package
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 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 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.