Mocha is a flexible and fun JavaScript test framework suitable for Node.js and browser environments. Versions 5.1.0 and 5.1.1 are very similar, sharing the same core dependencies like he, diff, glob, and debug for handling HTML entities, text comparisons, file matching, and debugging, respectively. They also utilize commander for command-line interface creation. Both versions include virtually identical development dependencies, showcasing a consistent toolchain for building, testing, and linting the library itself. This includes tools like eslint for code quality, nyc for code coverage, and browserify for bundling.
The key difference lies in the distribution metadata and the release date. Version 5.1.1 was released on April 18, 2018, while version 5.1.0 was released on April 12, 2018. A minor difference is the file count within the distributed tarball. Version 5.1.1 has 51 files, and version 5.1.0 has 53 files, which can imply some changes in the file structure or included assets. The unpacked size is also slightly different. Version 5.1.1 being 785244 bytes, while version 5.1.0 is 785155 bytes.
For developers, the practical impact of upgrading from 5.1.0 to 5.1.1 is likely minimal unless they encountered specific bugs or issues addressed in the newer patch. As a patch version, 5.1.1 most likely includes minor bug fixes and improvements, ensuring greater stability and reliability in your testing suite. Always consult the changelog for detailed information about specific changes and resolutions.
All the vulnerabilities related to the version 5.1.1 of the package
Prototype Pollution in minimist
Affected versions of minimist are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of Object, causing the addition or modification of an existing property that will exist on all objects.
Parsing the argument --__proto__.y=Polluted adds a y property with value Polluted to all objects. The argument --__proto__=Polluted raises and uncaught error and crashes the application.
This is exploitable if attackers have control over the arguments being passed to minimist.
Upgrade to versions 0.2.1, 1.2.3 or later.
Prototype Pollution in minimist
Minimist prior to 1.2.6 and 0.2.4 is vulnerable to Prototype Pollution via file index.js, function setKey() (lines 69-95).
minimatch ReDoS vulnerability
A vulnerability was found in the minimatch package. This flaw allows a Regular Expression Denial of Service (ReDoS) when calling the braceExpand function with specific arguments, resulting in a Denial of Service.
