cve/2021/CVE-2021-21903.md

### [CVE-2021-21903](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21903)
![](https://img.shields.io/static/v1?label=Product&message=Garrett%20Metal%20Detectors&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-120%3A%20Buffer%20Copy%20without%20Checking%20Size%20of%20Input%20('Classic%20Buffer%20Overflow')&color=brighgreen)

### Description

A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to strcpy. An attacker can send a malicious packet to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1355

#### Github
No PoCs found on GitHub currently.