CVE-2023-27349

Publication date 3 May 2024

Last updated 8 July 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bluez	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	22.04 LTS jammy	Fixed 5.64-0ubuntu1.3
	20.04 LTS focal	Fixed 5.53-0ubuntu3.8
	18.04 LTS bionic	Fixed 5.48-0ubuntu3.9+esm2
	16.04 LTS xenial	Fixed 5.37-0ubuntu5.3+esm4

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
bluez	Upstream: ?id=f54

Severity score breakdown

Parameter	Value
Base score	7.1 · High
Attack vector	Adjacent
Attack complexity	High
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-6809-1
BlueZ vulnerabilities
5 June 2024