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USN-6540-1: BlueZ vulnerability

7 December 2023

BlueZ could be made to give a physically proximate attacker keyboard and mouse control of a computer.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

  • bluez - Bluetooth tools and daemons

Details

It was discovered that BlueZ did not properly restrict non-bonded devices
from injecting HID events into the input subsystem. This could allow a
physically proximate attacker to inject keystrokes and execute arbitrary
commands whilst the device is discoverable.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References