ASA-2019-00012 – Linux: Heap address information leak while using L2CAP_GET_CONF_OPT

A flaw was found in the Linux kernels implementation of Logical link control and adaptation protocol (L2CAP), part of the bluetooth stack. An attacker with physical access within the range of standard bluetooth transmission can create a specially crafted packet. The response to this specially crafted packet can contain part of the kernel stack which can be used in a further attack.