CVE-2021-31612 Information

Description

The Bluetooth Classic implementation on Zhuhai Jieli AC690X devices does not properly handle the reception of an oversized LMP packet greater than 17 bytes during the LMP auto rate procedure allowing attackers in radio range to trigger a deadlock via a crafted LMP packet.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://launchstudio.bluetooth.com/ListingDetails/19746 https://dl.packetstormsecurity.net/papers/general/braktooth.pdf http://www.zh-jieli.com/product/68-cn.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5