CVE-2021-34148: Medium severity cypress wireless internet connectivity for embedded devices vulnerability
The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMPmaxslot 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 Software
Event History
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2021-34148.
What is the severity rating of CVE-2021-34148?
CVE-2021-34148 has a severity rating of 6.5 (medium).
Which devices are affected by CVE-2021-34148?
Devices running Cypress WICED BT stack through version 2.9.0 for CYW20735B1 are affected by CVE-2021-34148.
What is the impact of CVE-2021-34148?
CVE-2021-34148 allows attackers in radio range to trigger a denial of service (DoS) by exploiting a vulnerability in the Bluetooth Classic implementation.
Are Cypress CYW20735B1 devices vulnerable to CVE-2021-34148?
No, Cypress CYW20735B1 devices are not vulnerable to CVE-2021-34148.