Eslint version 0.0.5 represents a minor iteration in the early stages of this popular JavaScript linting tool, building upon the foundation laid by version 0.0.4. Both versions, designed around Esprima, serve as pattern checkers ensuring code quality and consistency. Developers using Eslint will appreciate its role in automating code style enforcement, catching potential errors, and promoting best practices.
A key difference between the two versions lies in their dependencies. Version 0.0.5 replaces the "astw" dependency found in 0.0.4 with "estraverse," suggesting a shift or refinement in the way the code traversal and analysis are handled. This likely impacts the internal workings of Eslint, potentially leading to improved performance or more accurate rule application. Both versions rely on core tools like JSHint, Esprima, and Optimist.
For developers, this update signifies a potential refinement in Eslint’s core analyzing mechanisms. While the change seems internal, the move from astw to estraverse could affect how rules are evaluated. Eslint's utilities, such as vows,sinon,jshint and istanbul serve to improve testing and continuous integration in developers pipelines. Remember that while these are ancient versions, knowing this allows you to follow the progress of the library through time. Also note that while both versions include jshint as a dependency they also include it as a dev-dependency specifying a version for testing porpuses.
All the vulnerabilities related to the version 0.0.5 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).
