Babel Plugin Transform Async to Generator, versions 6.1.5 and 6.1.4, are Babel plugins designed to transform ES2017 async functions into ES2015 generator functions, enhancing compatibility with older JavaScript environments. Both versions share the same core functionality, allowing developers to leverage async/await syntax while targeting platforms that may not natively support it. They depend on babel-helper-remap-async-to-generator, babel-plugin-syntax-async-functions, and babel-runtime, ensuring seamless integration within the Babel ecosystem. Development dependencies include babel-helper-plugin-test-runner for robust testing.
The key difference lies in the dependency versions within the packages. Version 6.1.5 updates both babel-helper-remap-async-to-generator and babel-plugin-syntax-async-functions to "^6.1.5" to ensure internal consistency and potentially include bug fixes or performance improvements within those dependent packages. Version 6.1.4 uses "^6.1.4" for the same dependencies. For developers, upgrading to 6.1.5 means potentially benefiting from the latest improvements and bug fixes in the Babel helper and syntax packages. If facing specific issues or build errors related to async/await transformation, upgrading to the latest version 6.1.5 is a good starting point for debugging. The release dates also highlight a very rapid release cycle, potentially indicating a hotfix or very minor update in 6.1.5. Both versions are licensed under MIT and available through the Babel GitHub repository, ensuring open-source flexibility and community support.
All the vulnerabilities related to the version 6.1.5 of the package
Babel vulnerable to arbitrary code execution when compiling specifically crafted malicious code
Using Babel to compile code that was specifically crafted by an attacker can lead to arbitrary code execution during compilation, when using plugins that rely on the path.evaluate()or path.evaluateTruthy() internal Babel methods.
Known affected plugins are:
@babel/plugin-transform-runtime@babel/preset-env when using its useBuiltIns option@babel/helper-define-polyfill-provider, such as babel-plugin-polyfill-corejs3, babel-plugin-polyfill-corejs2, babel-plugin-polyfill-es-shims, babel-plugin-polyfill-regeneratorNo other plugins under the @babel/ namespace are impacted, but third-party plugins might be.
Users that only compile trusted code are not impacted.
The vulnerability has been fixed in @babel/traverse@7.23.2.
Babel 6 does not receive security fixes anymore (see Babel's security policy), hence there is no patch planned for babel-traverse@6.
@babel/traverse to v7.23.2 or higher. You can do this by deleting it from your package manager's lockfile and re-installing the dependencies. @babel/core >=7.23.2 will automatically pull in a non-vulnerable version.@babel/traverse and are using one of the affected packages mentioned above, upgrade them to their latest version to avoid triggering the vulnerable code path in affected @babel/traverse versions:
@babel/plugin-transform-runtime v7.23.2@babel/preset-env v7.23.2@babel/helper-define-polyfill-provider v0.4.3babel-plugin-polyfill-corejs2 v0.4.6babel-plugin-polyfill-corejs3 v0.8.5babel-plugin-polyfill-es-shims v0.10.0babel-plugin-polyfill-regenerator v0.5.3