CVE-2021-31785 - CVE House
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Status published Medium CVE-2021-31785

The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets...

Vulnerability 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 Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

actions-semi

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Affected Software

ats2819p firmware, ats2815 firmware, ats2819 firmware, ats2819s firmware, ats2819t firmware
Vulnerable Versions:
Unknown

Timeline

Official Publish: September 7th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.