CVE-2021-34148

Medium

Description

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductCypress Wireless Internet Connectivity For Embedded Devices
PublishedSep 7, 2021
First seenSep 7, 2021

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
cypress wireless_internet_connectivity_for_embedded_devicesv ≤ 2.9.0—

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CVE-2021-34148 · Cypress Wireless Internet Connectivity For Embedded Devices · Dark Radar