Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-31611

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/09/2021
Last modified:
03/05/2022

Description

The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle an out-of-order LMP Setup procedure that is followed by a malformed LMP packet, allowing attackers in radio range to deadlock a device via a crafted LMP packet. The user needs to manually reboot the device to restore communication.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.70 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.70
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 3.30 LOW
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
3.30
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:zh-jieli:ac6901_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zh-jieli:ac6901:-:*:*:*:*:*:*:*
cpe:2.3:o:zh-jieli:ac6925_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zh-jieli:ac6925:-:*:*:*:*:*:*:*
cpe:2.3:o:zh-jieli:ac6926_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zh-jieli:ac6926:-:*:*:*:*:*:*:*
cpe:2.3:o:zh-jieli:ac6928_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zh-jieli:ac6928:-:*:*:*:*:*:*:*
cpe:2.3:o:zh-jieli:ac6921_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zh-jieli:ac6921:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools