Description
BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of the stream endpoints. 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-29429.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| BlueZ | BlueZ | b138a0849ba26310c3f40e78037565ce274d8737 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bluez | 5.87-1 | — |
| Debian 13 | bluez | No fix yet | — |
| Debian 12 | bluez | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | bluez | No fix yet | — |
| Ubuntu 26.04 LTS | bluez | 5.85-4ubuntu0.3 | USN-8908-2, USN-8908-1 |
| Ubuntu 24.04 LTS | bluez | 5.72-0ubuntu5.7 | USN-8908-2, USN-8908-1 |
| Ubuntu 22.04 LTS | bluez | 5.64-0ubuntu1.5 | USN-8908-2, USN-8908-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | bluez | 5.53-0ubuntu3.9+esm1 | USN-8908-2, USN-8908-1 |
| Ubuntu Pro 18.04 LTS | bluez | 5.48-0ubuntu3.9+esm3 | USN-8908-1 |
| Ubuntu Pro 16.04 LTS | bluez | 5.37-0ubuntu5.3+esm6 | USN-8908-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | bluez +7 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | bluez | 5.63-8 | — |
Advisories 4
- USN-8908-2 bluez regression Ubuntu Security Notices (USN) · Oct 17, 2026
- WID-SEC-2026-2984 bluez: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 14, 2026
- USN-8908-1 bluez vulnerabilities Ubuntu Security Notices (USN) · Oct 9, 2026
- ALAS2023-2026-3141 Important: bluez security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 28, 2026
References
- ZDI-26-589
- vendor-provided URL vendor-advisory