Vue 2.2.4 is a minor version update following Vue 2.2.3 in the popular JavaScript framework for building user interfaces. Both versions share the same core philosophy: providing a reactive, component-oriented view layer suitable for modern web development. Examining the package.json data reveals that they largely share the same set of development dependencies, ensuring a consistent development environment for contributors. However, the key difference lies in the release date, with version 2.2.4 being released shortly after 2.2.3.
Developers should be particularly interested in this update as it likely includes bug fixes and minor improvements that enhance the stability and performance of the framework. It's crucial for Vue developers to stay updated with the latest patches to ensure they are leveraging the most refined and secure version of the library. While the development dependencies remain consistent, indicating no significant API changes, the update likely addresses edge cases or performance bottlenecks identified in the previous release. For developers already using Vue 2.2.3, upgrading to 2.2.4 is a recommended step for maintaining a healthy and efficient application. This incremental update underscores the Vue team's commitment to continuous improvement and providing a reliable foundation for building modern web applications.
All the vulnerabilities related to the version 2.2.4 of the package
ReDoS vulnerability in vue package that is exploitable through inefficient regex evaluation in the parseHTML function
The ReDoS can be exploited through the parseHTML function in the html-parser.ts file. This flaw allows attackers to slow down the application by providing specially crafted input that causes inefficient processing of regular expressions, leading to excessive resource consumption.
To demonstrate this vulnerability, here's an example. In a Vue client-side application, create a new Vue instance with a template string that includes a <script> tag but closes it incorrectly with something like </textarea>.
new Vue({
el: '#app',
template: '
<div>
Hello, world!
<script>${'<'.repeat(1000000)}</textarea>
</div>'
});
Next, set up a basic HTML page (e.g., index.html) to load this JavaScript and mount the Vue instance:
<!DOCTYPE html>
<html>
<head>
<title>My first Vue app</title>
</head>
<body>
<div id=\"app\">Loading...</div>
</body>
</html>
When you visit the app in your browser at http://localhost:3000, you'll notice that the time taken to parse and mount the Vue application increases significantly due to the ReDoS vulnerability, demonstrating how the flaw can affect performance.