Vulnerability identifier: #VU56309

Vulnerability risk: Low

CVSSv3.1: 6 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-34144

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
AC6366C_DEMO_V1.0
Hardware solutions / Firmware
AC6366C BT SDK
Hardware solutions / Firmware

Vendor: JieLi

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the Bluetooth Classic implementation does not properly handle the reception of truncated LMP_SCO_Link_Request packets while no other BT connections are active. A remote attacker in radio range can send a specially crafted LMP packet and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

AC6366C_DEMO_V1.0: All versions

AC6366C BT SDK: 0.9.1

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External links
http://asset-group.github.io/disclosures/braktooth/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.