fido2-lib is vulnerable to DoS via cbor-extract heap buffer over-read in CBOR attestation parsing

Summary fido2-lib v3.x depends on cbor-x 1.6.0, which optionally pulls in cbor-extract C++ native addon. cbor-extract = 2.2.0 has a heap buffer over-read in extractStrings — a 5-byte CBOR payload crashes Node.js with SIGSEGV. No JS exception, no try/catch, process dead. The crash triggers during...

GHSA-G3QJ-J598-CXMQ fido2-lib is vulnerable to DoS via cbor-extract heap buffer over-read in CBOR attestation parsing

Summary fido2-lib v3.x depends on cbor-x 1.6.0, which optionally pulls in cbor-extract C++ native addon. cbor-extract = 2.2.0 has a heap buffer over-read in extractStrings — a 5-byte CBOR payload crashes Node.js with SIGSEGV. No JS exception, no try/catch, process dead. The crash triggers during...