CVE-2021-34145

EPSS 0.12%
Published 07.09.2021 07:15:07
Last modified 21.11.2024 06:09:56
Source cve@mitre.org
Teams watchlist Login
Open Login

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.

Affected products Warnungen 0 Metrics 3 CWE 0 References 5

Data is provided by the National Vulnerability Database (NVD)

Cypress ≫ Wireless Internet Connectivity For Embedded Devices Version <= 2.9.0

Cypress ≫ Cyw20735b1 Version-

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.12%	0.272

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	5.3	1.6	3.6	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov	2.9	5.5	2.9	AV:A/AC:M/Au:N/C:N/I:N/A:P

https://dl.packetstormsecurity.net/papers/general/braktooth.pdf

Broken Link

https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-34145

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-34145

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-34145

EUVD