Bluetooth HID Hosts in BlueZ may permit an unauthenticated Peripheral role HID Device to initiate and establish an encrypted connection, and accept HID keyboard reports, potentially permitting injection of HID messages when no user interaction has occurred in the Central role to authorize such access. An example affected package is bluez 5.64-0ubuntu1 in Ubuntu 22.04LTS. NOTE: in some cases, a CVE-2020-0556 mitigation would have already addressed this Bluetooth HID Hosts issue.
https://www.debian.org/security/2023/dsa-5584
https://support.apple.com/kb/HT214036
https://support.apple.com/kb/HT214035
https://security.gentoo.org/glsa/202401-03
https://lists.debian.org/debian-lts-announce/2023/12/msg00011.html
https://github.com/skysafe/reblog/tree/main/cve-2023-45866
https://github.com/hegaz0y/-BuL
https://github.com/BrotherOfJhonny/bleak
https://github.com/InnerFireZ/air-bt
https://github.com/Sergeb250/BlueDucky
https://github.com/ladyg00se/CVE-2023-45866_WIP
https://github.com/CerberusMrX/Advanced-Bluetooth-Penetration-Testing-Tool
https://github.com/xG3nesis/RustyInjector
https://github.com/Danyw24/blueXploit
https://github.com/cisnarfu/Bluepop
https://github.com/Eason-zz/BluetoothDucky
https://github.com/pentestfunctions/BlueDucky
https://github.com/pentestfunctions/BluetoothDucky
http://changelogs.ubuntu.com/changelogs/pool/main/b/bluez/bluez_5.64-0ubuntu1/changelog