medium6.5
CVE-2021-34146
The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing at…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cypress | Cyw920735q60evb-01 Firmware | All versions |
| Cypress | Cyw20735b1 Firmware | All versions |
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