Out-of-bounds Read

Overview Versions of base64-url before 2.0.0 are vulnerable to out-of-bounds read as it allocates uninitialized Buffers when number is passed in input. Recommendation Update to version 2.0.0 or later. References - HackerOne Report - GitHub Advisory...

Node.js third-party modules: `base64-url` below 2.0 allocates uninitialized Buffers when number is passed in input

I would like to report an uninitialized Buffer allocation issue in base64-url. It allows to extract sensitive data from uninitialized memory or to cause a DoS by passing in a large number, in setups where typed user input can be passed e.g. from JSON. Module module name: base64-url version: 1.3.3...