CVE-2023-27349 BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability

What is CVE-2023-27349?

CVE-2023-27349 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 Improper Validation of Array Index 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 user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19908.

Weakness: CWE-129

Which versions are affected by CVE-2023-27349?

It affects 1 product.

Products include Bluez Bluez.

How do I fix CVE-2023-27349?

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-2023-27349 being exploited?

There is no known exploitation of CVE-2023-27349 in the wild and no public exploit code.

Other vulnerabilities in BlueZ

• CVE-2021-43400 Use after free in n/a Critical 9.1
• CVE-2024-8805 BlueZ HID over GATT Profile Improper Access Control Remote Code Execution Vulnerability High 8.8
• CVE-2022-39176 Information disclosure in n/a High 8.8
• CVE-2022-39177 Denial of service in n/a High 8.8
• CVE-2022-0204 Memory corruption in bluez High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLSA-2025-1754939879, CLSA-2026-1788176031, DEBIAN-CVE-2023-27349, DLA-3820-1, GHSA-r3vg-5hjq-528v, OESA-2023-1249 and 8 more.