CVEs-PoC/2019/CVE-2019-16748.md

CVE-2019-16748

Description

In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.

POC

Reference

No PoCs from references.

Github

• https://github.com/MrE-Fog/NVLeak-wolfSSL
• https://github.com/TheNetAdmin/NVLeak-wolfSSL
• https://github.com/neppe/wolfssl