What is the severity of ZDI-23-1811?

The ZDI-23-1811 vulnerability is considered critical due to its ability to allow arbitrary code execution by network-adjacent attackers.

How do I fix ZDI-23-1811?

To mitigate ZDI-23-1811, users should upgrade to the latest version of BlueZ that addresses this vulnerability.

What causes the vulnerability ZDI-23-1811?

ZDI-23-1811 arises from improper handling of Bluetooth connections, which allows for the execution of arbitrary code by connecting to a malicious device.

Who is affected by ZDI-23-1811?

Any installation of BlueZ that allows Bluetooth connections is potentially vulnerable to ZDI-23-1811.

Is user interaction required to exploit ZDI-23-1811?

Yes, user interaction is required as the target must connect to a malicious Bluetooth device to exploit ZDI-23-1811.

Vulnerability/
ZDI-23-1811

high

7.1

20/12/2023

27/2/2025

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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Frequently Asked Questions

What is the severity of ZDI-23-1811?
The ZDI-23-1811 vulnerability is considered critical due to its ability to allow arbitrary code execution by network-adjacent attackers.
How do I fix ZDI-23-1811?
To mitigate ZDI-23-1811, users should upgrade to the latest version of BlueZ that addresses this vulnerability.
What causes the vulnerability ZDI-23-1811?
ZDI-23-1811 arises from improper handling of Bluetooth connections, which allows for the execution of arbitrary code by connecting to a malicious device.
Who is affected by ZDI-23-1811?
Any installation of BlueZ that allows Bluetooth connections is potentially vulnerable to ZDI-23-1811.
Is user interaction required to exploit ZDI-23-1811?
Yes, user interaction is required as the target must connect to a malicious Bluetooth device to exploit ZDI-23-1811.

collector/zdi-published
alias/ZDI-CAN-20936
agent/type
agent/last-modified-date
agent/first-publish-date
agent/severity
agent/references
agent/title
agent/description
agent/source
agent/softwarecombine
agent/tags
agent/event
collector/zdi-advisory
source/ZDI
alias/ZDI-23-1811
alias/CVE-2023-50229
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/bluez
canonical/suse bluez

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