BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device.

The specific flaw exists within the handling of the Phone Book Access profile. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20938.

Zero Day Initiative AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Zero Day Initiative CWE-122

Zero Day Initiative https://github.com/bluez/bluez/commit/5ab5352531a9cc7058cce569607f3a6831464443 [No types assigned]

Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-23-1812/ [No types assigned]