Babel-core version 4.0.2 represents a minor update over its predecessor, version 4.0.1, in the popular JavaScript transpiler library. Both versions share the core functionality of converting modern ES6 JavaScript code into readable, universally compatible ES5, ensuring broader browser support. Key dependencies like acorn-babel for parsing, ast-types for AST manipulation, and regenerator-babel for generator support are present in both, reflecting Babel's reliance on a modular ecosystem.
However, several dependency updates differentiate the two versions. Most notably, globals jumps from version ^5.1.0 to ^6.2.0, potentially bringing in new or refined definitions of global JavaScript environments. lodash sees an update from version 3.0.0 to ^3.2.0, likely incorporating performance improvements and new utility functions. Additionally, commander moves from version 2.6.0, while regexpu transitions from 1.1.0 to ^1.1.1, reflecting ongoing improvements to regular expression handling. The removal of roadrunner, supports-color, and useragent from the dependencies could indicate refactoring or integration of their functionalities into other components. A new dependency source-map-to-comment is added, potentially enhancing integration with source maps.
Developers should consider these dependency upgrades for potential bug fixes, performance enhancements, or breaking changes in the underlying third-party libraries, especially around globals definition and utilities from lodash. The inclusion source-map-to-comment could be important for those heavily relying on debugging with source maps. Ultimately, upgrading from 4.0.1 to 4.0.2 offers a refined and potentially more robust transpilation experience.
All the vulnerabilities related to the version 4.0.2 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.
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.