ZDI-CAN-20938: ZDI-23-1812: BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Wed Dec 20 2023(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SUSE BlueZ |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-20938?
The severity of ZDI-CAN-20938 is critical due to its potential for arbitrary code execution.
How do I fix ZDI-CAN-20938?
To fix ZDI-CAN-20938, you need to update BlueZ to the latest version that addresses this vulnerability.
Who is affected by ZDI-CAN-20938?
ZDI-CAN-20938 affects users of BlueZ who connect to malicious Bluetooth devices.
What type of attack does ZDI-CAN-20938 facilitate?
ZDI-CAN-20938 facilitates remote code execution attacks requiring user interaction.
What are the prerequisites for exploiting ZDI-CAN-20938?
Exploitation of ZDI-CAN-20938 requires a target to connect to a malicious Bluetooth device.
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