CVEs-PoC/2021/CVE-2021-3671.md

### [CVE-2021-3671](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3671)
![](https://img.shields.io/static/v1?label=Product&message=Samba&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Fixed%20in%20samba%204.13.12%2C%20samba%204.14.8%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-476&color=brightgreen)

### Description

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/dispera/giant-squid