CVE-2023-44431 BlueZ Audio Profile AVRCP Stack-based Buffer Overflow Remote Code Execution Vulnerability
Network-adjacent attackers can execute arbitrary code with root privileges via Bluetooth by exploiting a stack-based buffer overflow in the BlueZ AVRCP protocol.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-44431?
CVE-2023-44431 is a high-severity memory corruption vulnerability in BlueZ, published on 3 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
BlueZ Audio Profile AVRCP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device.
The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19909.
Weakness: CWE-121
Which versions are affected by CVE-2023-44431?
It affects 1 product.
Products include Bluez Bluez.
How do I fix CVE-2023-44431?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-44431 being exploited?
There is no known exploitation of CVE-2023-44431 in the wild and no public exploit code.
Other vulnerabilities in BlueZ
Sources
Also known as BELL-CVE-2023-44431, DEBIAN-CVE-2023-44431, GHSA-crgw-4rjj-j4j9, ROOT-OS-DEBIAN-11-CVE-2023-44431, ROOT-OS-DEBIAN-12-CVE-2023-44431, UBUNTU-CVE-2023-44431.