FKIE_CVE-2021-34145

Vulnerability from fkie_nvd - Published: 2021-09-07 07:15 - Updated: 2024-11-21 06:09
Severity ?
5.3 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
cve@mitre.orghttps://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
cve@mitre.orghttps://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devicesVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
af854a3a-2127-422b-91ae-364da2661108https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devicesVendor Advisory
Impacted products
Vendor Product Version
cypress wireless_internet_connectivity_for_embedded_devices *
cypress cyw20735b1 -
To clipboard 

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      "value": "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."
    },
    {
      "lang": "es",
      "value": "Una implementaci\u00f3n de Bluetooth Classic en la pila WICED BT de Cypress versiones hasta 2.9.0, para los dispositivos CYW20735B1 no maneja apropiadamente la recepci\u00f3n de LMP_max_slot con un tipo de paquete de banda base no v\u00e1lido (y LT_ADDRESS y LT_ADDR) tras la finalizaci\u00f3n del procedimiento de configuraci\u00f3n de LMP, permitiendo a atacantes en el rango de radio desencadenar una denegaci\u00f3n de servicio (bloqueo del firmware) por medio de un paquete LMP dise\u00f1ado"
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  "id": "CVE-2021-34145",
  "lastModified": "2024-11-21T06:09:56.913",
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