Vue.js version 2.1.10 represents a subtle but important iteration over its predecessor, version 2.1.9. Both versions maintain the core principle of Vue: providing a reactive and component-oriented view layer ideal for crafting modern web interfaces. A detailed look reveals almost identical dependency structures between the two. Core development dependencies, including tools such as webpack, rollup, eslint, and babel-core, remain consistent. This suggests that the underlying build process and development environment remained stable, which means developers upgrading won't face compatibility issues.
Although the devDependencies are identical, the update from 2.1.9 to 2.1.10 is still relevant. Patch versions (the last number in semantic versioning like 2.1.*10*) typically indicate bug fixes and minor improvements. While the specific fixes aren't detailed in this data, developers can expect increased stability and potentially subtle performance enhancements when moving to version 2.1.10. For those already using Vue 2.1.9, upgrading to 2.1.10 is a recommended, low-risk step to benefit from the latest refinements. The consistent dependency setup makes the transition smooth. New projects should, of course, always opt for the most recent stable version.
All the vulnerabilities related to the version 2.1.10 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.