Out-of-bounds Read

Overview Versions of base64url before 3.0.0 are vulnerable to to out-of-bounds reads as it allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below. Recommendation Update to version 3.0.0 or later. References - HackerOne Report - PR 25 - GitHub Advisory...

Uninitialized Buffer Allocation

base64url is vulnerable to uninitialized buffer allocation. The library contains an uninitialized memory allocation when handling a large number, which can allow a malicious user to gain access to sensitive information or crash the application...

Node.js third-party modules: `base64url` allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below

I would like to report an uninitialized Buffer allocation issue in base64url. 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, on Node.js 4.x and lower. Module module name:...