The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMP_max_slot with an invalid Baseband packet type (and LT_ADDRESS and LT_ADDR) after completion of the LMP setup procedure, allowing attackers in radio range to trigger a denial of service (firmware crash) via a crafted LMP packet.

Subscriptions

Vendors Products
Cypress Subscribe
Cyw20735b1 Subscribe
Wireless Internet Connectivity For Embedded Devices Subscribe

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2021-20807 The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMP_max_slot with an invalid Baseband packet type (and LT_ADDRESS and LT_ADDR) after completion of the LMP setup procedure, allowing attackers in radio range to trigger a denial of service (firmware crash) via a crafted LMP packet.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T00:05:52.503Z

Reserved: 2021-06-07T00:00:00.000Z

Link: CVE-2021-34145

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-07T07:15:07.280

Modified: 2024-11-21T06:09:56.913

Link: CVE-2021-34145

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses