Vue 2.7.1 and 2.7.0 are closely related versions of the popular JavaScript framework for building user interfaces. Both versions share the same core description, emphasizing a reactive and component-oriented approach tailored for contemporary web development. They both depend on "csstype" and "@vue/compiler-sfc," reflecting their shared architecture. Developers familiar with Vue will find continuity between these releases.
The primary difference lies in their release dates and potentially minor bug fixes or performance improvements included in the later 2.7.1 version. Version 2.7.0 was released on July 1, 2022, while 2.7.1 followed shortly after on July 4, 2022. The unpacked size also increased slightly in the newer version (4776538 bytes vs 4771257 bytes) suggesting minor alterations, probably bug fixes.
For developers, this means that upgrading from 2.7.0 to 2.7.1 should be a low-risk endeavor. Given the short time span between releases, the changes are unlikely to introduce breaking behavior. Using the latest patch version (2.7.1) is generally recommended to benefit from the most up-to-date stability and any subtle enhancements it offers. The shared 'devDependencies' section highlights the tools vital for Vue development such as Rollup, Terser, and Typescript emphasizing the framework's modern build and tooling ecosystem.
All the vulnerabilities related to the version 2.7.1 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.