Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2021-34148

Published: Sep 07, 2021 | Modified: Sep 14, 2021
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
6.1 MEDIUM
AV:A/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-34148
CWEhttps://cwe.mitre.org/data/definitions/.html

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.

Affected Software

Name Vendor Start Version End Version
Wireless_internet_connectivity_for_embedded_devices Cypress * 2.9.0 (including)
Bluez-firmware Ubuntu kinetic *
Bluez-firmware Ubuntu lunar *
Bluez-firmware Ubuntu mantic *
Bluez-firmware Ubuntu trusty *
Bluez-firmware Ubuntu xenial *

References

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