CVE-2021-34146

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.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:cypress:cyw920735q60evb-01_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:cypress:cyw920735q60evb-01:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:cypress:cyw20735b1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:cypress:cyw20735b1:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:09

Type Values Removed Values Added
References () https://dl.packetstormsecurity.net/papers/general/braktooth.pdf - Technical Description, Third Party Advisory () https://dl.packetstormsecurity.net/papers/general/braktooth.pdf - Technical Description, Third Party Advisory
References () https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices - Vendor Advisory () https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices - Vendor Advisory

Information

Published : 2021-09-07 07:15

Updated : 2024-11-21 06:09


NVD link : CVE-2021-34146

Mitre link : CVE-2021-34146

CVE.ORG link : CVE-2021-34146


JSON object : View

Products Affected

cypress

  • cyw920735q60evb-01
  • cyw20735b1
  • cyw20735b1_firmware
  • cyw920735q60evb-01_firmware