medium6.5
CVE-2021-34148
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 …
Impact
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 a greater ACL Length 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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cypress | Wireless Internet Connectivity For Embedded Devices | through 2.9.0 |
References
- NVD record
- CVE.org record
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
- https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
- https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices