Bluetooth Blues: Unmasking CVE-2023-52709—The TI BLE5-Stack Attack
Details the discovery and exploitation of CVE-2023-52709 in the Texas Instruments BLE5-Stack, causing denial of service in bonded peer devices.
Summary
Bluetooth Low Energy Privacy Mechanisms
Bluetooth Low Energy (BLE) utilizes Resolvable Private Addresses (RPAs) to prevent device tracking while maintaining authenticated bonding between trusted peers.
Discovery and Root Cause of CVE-2023-52709
Analysis of the Texas Instruments BLE5-Stack revealed a flaw where the stack fails to generate a valid Resolvable Private Address under specific connection sequences.
Denial of Service Against Bonded Peers
Exploiting this vulnerability creates a permanent Denial of Service (DoS) condition, preventing previously paired automotive and IoT peer devices from reconnecting.
Automotive Implications and Patch Deployment
Because TI BLE chipsets are widely integrated into automotive keyless entry systems and telematics units, deploying firmware patches is critical to restore reliable wireless pairing.
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