cve/2019/CVE-2019-16748.md

### [CVE-2019-16748](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16748)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### 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