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Date: Sat, 8 Feb 2020 10:10:54 +0100
From: Marcin Kozlowski <>
Subject: [FD] Critical Bluetooth Vulnerability in Android (CVE-2020-0022) – BlueFrag

Hi all,

You can read more here, if you didn't hear about it:

Looking at the patch, when I understood it correctly, it seems all you need
to send fragmented GAP ACL L2CAP data over HCI:

Anybody can confirm/deny? Anybody had success on doing it?

Starting to work on PoC/Demo to crate such a packets:

Don't have a debugable device now though ...

For me crashing would be enough.

If anybody want to help on this, feel free to contact me directly or via
the list/SO.


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