ZDI-CAN-20936: ZDI-23-1811: 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-20936?
ZDI-CAN-20936 is classified as a high-severity vulnerability due to its potential to allow arbitrary code execution.
How do I fix ZDI-CAN-20936?
To fix ZDI-CAN-20936, users should update their BlueZ installation to the latest patched version provided by the vendor.
What are the risks associated with ZDI-CAN-20936?
The risks of ZDI-CAN-20936 include unauthorized access and control over affected systems by exploiting Bluetooth connections.
Who is affected by ZDI-CAN-20936?
Users of BlueZ are affected by ZDI-CAN-20936, particularly those who connect to malicious Bluetooth devices.
What is the attack vector for ZDI-CAN-20936?
The attack vector for ZDI-CAN-20936 is network-adjacent, requiring user interaction to connect to a compromised Bluetooth device.
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