Ubuntu Security Notice USN-256-1 – Pierre Betouin discovered a Denial of Service vulnerability in the handling of the L2CAP (Logical Link Control and Adaptation Layer Protocol) layer. By sending a specially crafted L2CAP packet through a wireless Bluetooth connection, a remote attacker could crash hcidump.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44071/USN-256-1.txt
Source: https://packetstormsecurity.com/files/44071/Ubuntu-Security-Notice-256-1.html