An attacker within bluetooth transmission range can cause a stack buffer overflow in the Bluetooth system of the Linux kernel while processing pending L2CAP configuration responses from a client. An unauthenticated user able to connect to a system via Bluetooth could use this flaw to potentially execute arbitrary code with root privileges on the system.

External References:

https://www.armis.com/blueborne/ https://access.redhat.com/security/vulnerabilities/blueborne https://access.redhat.com/solutions/3177231 https://access.redhat.com/blogs/product-security/posts/blueborne

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e860d2c904d1a9f38a24eb44c9f34b8f915a6ea3