CVE Vulnerability

CVE-2021-31785

The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.

6.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.5 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description Third Party Advisory
https://www.actions-semi.com/index.php?id=3581&siteId=4 Broken Link Vendor Advisory
https://launchstudio.bluetooth.com/ListingDetails/76427 Third Party Advisory
Configurations

Configuration 1
Information

Published : 2021-09-07 07:15

Updated : 2022-05-03 04:04

NVD link : CVE-2021-31785

Mitre link : CVE-2021-31785

Products Affected
No products.
CWE
CWE-667