Vue 2.5.11 is a minor update to the popular JavaScript framework, building upon the solid foundation of Vue 2.5.10. While both versions share the same core principles of reactive, component-oriented development, a closer look reveals subtle yet important changes, primarily in the development dependencies. Developers will appreciate the updated tooling that contributes to a smoother and more efficient workflow.
Specifically, version 2.5.11 sees updates to its development dependencies, including "chalk" (v2.3.0 from v1.1.3) and "buble" (v0.18.0 from v0.16.0), along with an upgrade to "eslint," now at version 4.13.1 from v3.0.0. The webpack is upgraded from v2.6.1 to v3.10.0. These updates typically bring performance improvements, bug fixes, and new features in the associated tools, ultimately enhancing the development experience.
Another notable change is with "eslint-plugin-vue-libs", going from version v1.2.0 to v2.0.1. While these changes may not directly affect the runtime behavior of Vue applications, they are crucial for maintaining code quality, ensuring compatibility with the latest standards, and leveraging the newest features of the surrounding ecosystem. This focus on developer experience underlines Vue's commitment to providing a modern and productive environment for building web interfaces. Developers should consider upgrading to 2.5.11 to benefit from these improvements, ensuring they have access to the latest refinements in the Vue development toolchain.
All the vulnerabilities related to the version 2.5.11 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.