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CVE-2021-34144

CVE-2021-34144

EPSS 0.7%
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.
Affected products
n/a · n/a

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References
https://dl.packetstormsecurity.net/papers/general/braktooth.pdfhttps://github.com/Jieli-Tech/fw-AC63_BT_SDKhttps://launchstudio.bluetooth.com/ListingDetails/91371