Debug version 2.6.6 represents a minor increment from its predecessor, version 2.6.5, in this widely used debugging utility for Node.js and browsers. Both versions share the same core functionality, offering a simple yet powerful way to selectively enable debugging output within an application. They both relies on the "ms" package version 0.7.3 as dependency. The developer dependencies are also the same for both versions, including tools like Chai, Mocha, and Sinon for testing, ESLint for code linting, Istanbul and Coveralls for coverage report, and Browserify for bundling.
However, the key distinction lies in the release date and potential minor bug fixes or internal improvements implemented in version 2.6.6. Released on April 27, 2017, but a few hours later, it suggests a possible hotfix or refinement addressed in the later version. For developers considering which version to use, opting for 2.6.6 is generally recommended, as it likely incorporates the latest enhancements and stability improvements available at that time. Due the nature of semantic versioning adopted by the library, the update would only contemplate bug fixes. The 'debug' library itself facilitates targeted log messages based on namespaces, allowing developers to filter and focus on specific areas of their code during debugging sessions. It supports both Node.js and browser environments for versatile use.
All the vulnerabilities related to the version 2.6.6 of the package
debug Inefficient Regular Expression Complexity vulnerability
A vulnerability classified as problematic has been found in debug-js debug up to 3.0.x. This affects the function useColors of the file src/node.js. The manipulation of the argument str leads to inefficient regular expression complexity. Upgrading to version 3.1.0 is able to address this issue. The name of the patch is c38a0166c266a679c8de012d4eaccec3f944e685. It is recommended to upgrade the affected component. The identifier VDB-217665 was assigned to this vulnerability. The patch has been backported to the 2.6.x branch in version 2.6.9.
Regular Expression Denial of Service in debug
Affected versions of debug are vulnerable to regular expression denial of service when untrusted user input is passed into the o formatter.
As it takes 50,000 characters to block the event loop for 2 seconds, this issue is a low severity issue.
This was later re-introduced in version v3.2.0, and then repatched in versions 3.2.7 and 4.3.1.
Version 2.x.x: Update to version 2.6.9 or later. Version 3.1.x: Update to version 3.1.0 or later. Version 3.2.x: Update to version 3.2.7 or later. Version 4.x.x: Update to version 4.3.1 or later.
Vercel ms Inefficient Regular Expression Complexity vulnerability
A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The name of the patch is caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.
