Lodash-es is a popular JavaScript utility library offering a wide array of functions designed to simplify common programming tasks. These functions range from array manipulation and object handling to string processing and function binding, all crafted to improve developer efficiency and code readability. Both version 4.17.7 and the slightly newer 4.17.8, are distributed as ES modules, optimized for modern JavaScript development workflows that leverage module bundlers like Webpack or Parcel for improved performance and maintainability.
Comparing the two adjacent releases, 4.17.8 and 4.17.7, the most evident difference lies in the release dates. Version 4.17.8 was published on March 27, 2018, whereas version 4.17.7 came out earlier on March 7, 2018. The later version likely incorporates bug fixes or minor enhancements accumulated during that short period. While the core features and functionalities remain consistent between these versions, developers should generally opt for the newer release (4.17.8) to benefit from potential stability improvements or edge-case resolutions. Both versions share the same file count (645) and unpacked size (628017), suggesting that the changes were likely minimal and focused on refining existing functionalities rather than introducing entirely new features. For developers already using lodash-es, upgrading from 4.17.7 to 4.17.8 is a recommended and straightforward process. New users can immediately leverage the latest version of the library for a robust, modular JavaScript experience.
All the vulnerabilities related to the version 4.17.8 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.