Debian 10 Buster DLA-3689-1 moderate: Bluez keyboard injection risk

Prior to this change, BlueZ may have permitted an unauthenticated
peripherals to establish encrypted connections and thereby accept
keyboard reports, potentially permitting injection of HID (~keyboard)
commands, despite no user authorising such access.

For Debian 10 buster, this problem has been fixed in version
5.50-1.2~deb10u4.

We recommend that you upgrade your bluez packages.

For the detailed security status of bluez please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/bluez

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS