cve/2023/CVE-2023-3725.md

### [CVE-2023-3725](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3725)
![](https://img.shields.io/static/v1?label=Product&message=Zephyr&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=*%3C%3D%203.4%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-120%20Buffer%20Copy%20without%20Checking%20Size%20of%20Input%20('Classic%20Buffer%20Overflow')&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-121%20Stack-based%20Buffer%20Overflow%20A%20stack-based%20buffer%20overflow%20condition%20is%20a%20condition%20where%20the%20buffer%20being%20overwritten%20is%20allocated%20on%20the%20stack%20(i.e.%2C%20is%20a%20local%20variable%20or%2C%20rarely%2C%20a%20parameter%20to%20a%20function).&color=brighgreen)

### Description

Potential buffer overflow vulnerability in the Zephyr CAN bus subsystem

### POC

#### Reference
- http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
- https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-2g3m-p6c7-8rr3

#### Github
- https://github.com/0xdea/advisories
- https://github.com/hnsecurity/vulns