Advisory Published

USN-6540-1: BlueZ vulnerability

First published: Thu Dec 07 2023(Updated: )

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.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/bluez<5.68-0ubuntu1.1
5.68-0ubuntu1.1
Ubuntu Ubuntu=23.10
All of
ubuntu/libbluetooth3<5.68-0ubuntu1.1
5.68-0ubuntu1.1
Ubuntu Ubuntu=23.10
All of
ubuntu/bluez<5.66-0ubuntu1.1
5.66-0ubuntu1.1
Ubuntu Ubuntu=23.04
All of
ubuntu/libbluetooth3<5.66-0ubuntu1.1
5.66-0ubuntu1.1
Ubuntu Ubuntu=23.04
All of
ubuntu/bluez<5.64-0ubuntu1.1
5.64-0ubuntu1.1
Ubuntu Ubuntu=22.04
All of
ubuntu/libbluetooth3<5.64-0ubuntu1.1
5.64-0ubuntu1.1
Ubuntu Ubuntu=22.04
All of
ubuntu/bluez<5.53-0ubuntu3.7
5.53-0ubuntu3.7
Ubuntu Ubuntu=20.04
All of
ubuntu/libbluetooth3<5.53-0ubuntu3.7
5.53-0ubuntu3.7
Ubuntu Ubuntu=20.04
All of
ubuntu/bluez<5.48-0ubuntu3.9+esm1
5.48-0ubuntu3.9+esm1
Ubuntu Ubuntu=18.04
All of
ubuntu/libbluetooth3<5.48-0ubuntu3.9+esm1
5.48-0ubuntu3.9+esm1
Ubuntu Ubuntu=18.04
All of
ubuntu/bluez<5.37-0ubuntu5.3+esm3
5.37-0ubuntu5.3+esm3
Ubuntu Ubuntu=16.04
All of
ubuntu/libbluetooth3<5.37-0ubuntu5.3+esm3
5.37-0ubuntu5.3+esm3
Ubuntu Ubuntu=16.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this BlueZ vulnerability?

    The vulnerability ID for this BlueZ vulnerability is USN-6540-1.

  • What is the impact of this vulnerability?

    This vulnerability could allow a physically proximate attacker to inject keystrokes and execute arbitrary commands.

  • Which software versions are affected by this vulnerability?

    The affected software versions are BlueZ 5.68-0ubuntu1.1, BlueZ 5.66-0ubuntu1.1, BlueZ 5.64-0ubuntu1.1, BlueZ 5.53-0ubuntu3.7, BlueZ 5.48-0ubuntu3.9+esm1, and BlueZ 5.37-0ubuntu5.3+esm3.

  • How can I fix this BlueZ vulnerability?

    To fix this vulnerability, update BlueZ to version 5.68-0ubuntu1.1 or later.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the Ubuntu security website and the referenced Launchpad pages.

Contact

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