CVE-2021-34147

The Bluetooth Classic implementation in the Cypress WICED BT stack through
2.9.0 for CYW20735B1 does not properly handle the reception of a malformed
LMP timing accuracy response followed by multiple reconnections to the link
slave, allowing attackers to exhaust device BT resources and eventually
trigger a crash via multiple attempts of sending a crafted LMP timing
accuracy response followed by a sudden reconnection with a random
BDAddress.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024356&gt;