Unrated severityNVD Advisory· Published Sep 7, 2021· Updated Aug 3, 2024
CVE-2021-31785
CVE-2021-31785
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.
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Affected products
2- Actions/ATS2815 and ATS2819 chipsetsdescription
Patches
Vulnerability mechanics
References
3- dl.packetstormsecurity.net/papers/general/braktooth.pdfmitrex_refsource_MISC
- launchstudio.bluetooth.com/ListingDetails/76427mitrex_refsource_MISC
- www.actions-semi.com/index.phpmitrex_refsource_MISC
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