ZDI-CAN-20939: ZDI-23-1902: (0Day) BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Thu Dec 21 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-20939?
The vulnerability ZDI-CAN-20939 has a high severity due to the potential for remote code execution.
How do I fix ZDI-CAN-20939?
To fix ZDI-CAN-20939, update to the latest version of the BlueZ software that addresses this vulnerability.
Who is affected by ZDI-CAN-20939?
ZDI-CAN-20939 affects users of BlueZ who have not implemented security measures against unauthorized Bluetooth connections.
What type of attack is associated with ZDI-CAN-20939?
ZDI-CAN-20939 allows for network-adjacent attackers to execute arbitrary code through malicious Bluetooth device connections.
Is user interaction required to exploit ZDI-CAN-20939?
Yes, user interaction is required as the target must connect to a malicious Bluetooth device for exploitation.
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