cve/2021/CVE-2021-34146.md

### [CVE-2021-34146](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34146)
![](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

The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart (crash) of the device by flooding it with LMP_AU_Rand packets after the paging procedure.

### POC

#### Reference
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/JeffroMF/awesome-bluetooth-security321
- https://github.com/engn33r/awesome-bluetooth-security