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 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.
Published: 2021-09-07
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-20807 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.
History

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Subscriptions

Cypress Cyw20735b1 Wireless Internet Connectivity For Embedded Devices
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T00:05:52.503Z

Reserved: 2021-06-07T00:00:00.000Z

Link: CVE-2021-34145

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-07T07:15:07.280

Modified: 2024-11-21T06:09:56.913

Link: CVE-2021-34145

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses