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

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CVE-2021-31785

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 Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.

Impact

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

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:*
cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:*
cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:*
cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:*
cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools