How does CVE-2021-34144 impact the affected software?

CVE-2021-34144 allows attackers in radio range to prevent new BT connections in the Zhuhai Jieli AC6366C BT SDK through 0.9.1.

What is the severity of CVE-2021-34144?

CVE-2021-34144 has a severity rating of 6.5 (Medium).

How can I fix CVE-2021-34144?

There is currently no known fix or patch available for CVE-2021-34144. It is recommended to follow the vendor's guidance and stay updated with the latest security advisories.

Where can I find more information about CVE-2021-34144?

You can find more information about CVE-2021-34144 on the following references: [Packet Storm Security](https://dl.packetstormsecurity.net/papers/general/braktooth.pdf), [GitHub fw-AC63_BT_SDK](https://github.com/Jieli-Tech/fw-AC63_BT_SDK), and [Bluetooth Listing Details](https://launchstudio.bluetooth.com/ListingDetails/91371).

Vulnerability/
CVE-2021-34144

medium

6.5

7/9/2021

9/9/2021

CVE-2021-34144

Q: What is CVE-2021-34144?

CVE-2021-34144 is a vulnerability in the Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1.

First published: Tue Sep 07 2021(Updated: )

The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1 does not properly handle the reception of truncated LMP_SCO_Link_Request packets while no other BT connections are active, allowing attackers in radio range to prevent new BT connections (disabling the AB5301A inquiry and page scan procedures) via a crafted LMP packet. The user needs to manually perform a power cycle (restart) of the device to restore BT connectivity.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Zh-jieli Fw-ac63 Bt Sdk	<=0.9.1
Zh-jieli Ac6936
Zh-jieli Ac6951
Zh-jieli Ac6952
Zh-jieli Ac6954
Zh-jieli Ac6955
Zh-jieli Ac6956
Zh-jieli Ac6963
Zh-jieli Ac6965
Zh-jieli Ac6966
Zh-jieli Ac6969
Zh-jieli Ac6973
Zh-jieli Ac6976
Zh-jieli Ac6983
Zh-jieli Ac6986

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Reference Links

Frequently Asked Questions

What is CVE-2021-34144?
CVE-2021-34144 is a vulnerability in the Bluetooth Classic implementation in the Zhuhai Jieli AC6366C BT SDK through 0.9.1.
How does CVE-2021-34144 impact the affected software?
CVE-2021-34144 allows attackers in radio range to prevent new BT connections in the Zhuhai Jieli AC6366C BT SDK through 0.9.1.
What is the severity of CVE-2021-34144?
CVE-2021-34144 has a severity rating of 6.5 (Medium).
How can I fix CVE-2021-34144?
There is currently no known fix or patch available for CVE-2021-34144. It is recommended to follow the vendor's guidance and stay updated with the latest security advisories.
Where can I find more information about CVE-2021-34144?
You can find more information about CVE-2021-34144 on the following references: [Packet Storm Security](https://dl.packetstormsecurity.net/papers/general/braktooth.pdf), [GitHub fw-AC63_BT_SDK](https://github.com/Jieli-Tech/fw-AC63_BT_SDK), and [Bluetooth Listing Details](https://launchstudio.bluetooth.com/ListingDetails/91371).

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