CVEs-PoC/2020/CVE-2020-24659.md

### [CVE-2020-24659](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24659)
![](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

An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/404notf0und/CVE-Flow