Vue version 2.1.3 is a minor patch release following version 2.1.2, both maintaining the core principles of a reactive and component-oriented view layer ideal for modern web interfaces. Examining the package.json files, a key difference lies in the releaseDate, with 2.1.3 released shortly after 2.1.2 on November 24, 2016, suggesting a quick follow-up to address potential bugs or minor improvements. The dependencies and devDependencies remain virtually identical, indicating that the core tooling and support libraries experienced no significant updates between these versions.
For developers, this small version bump likely means a focus on stability and refinements rather than introduction of new features. Upgrading from 2.1.2 to 2.1.3 should be a smooth process with minimal risk of breaking changes. Developers seeking a robust and reliable JavaScript framework for building user interfaces will appreciate Vue's commitment to consistent improvement. While the changes between these specific versions may be subtle, continuous enhancements like this, makes Vue a dependable progressive framework used for single-page applications and complex web applications. The consistent devDependencies, incorporating tools like Webpack, Rollup, and Babel, empower developers with a well-supported ecosystem for modern JavaScript development.
All the vulnerabilities related to the version 2.1.3 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.