CVE-2021-34148
Publication date 7 September 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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.
Status
Package | Ubuntu Release | Status |
---|---|---|
bluez-firmware | 24.10 oracular |
Needs evaluation
|
24.04 LTS noble |
Needs evaluation
|
|
22.04 LTS jammy |
Needs evaluation
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Ignored end of standard support | |
14.04 LTS trusty | Ignored end of standard support |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 · Medium |
Attack vector | Adjacent |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |