Description
A vulnerability classified as problematic has been found in Linux Kernel. Affected is the function read_50_controller_cap_complete of the file tools/mgmt-tester.c of the component BlueZ. The manipulation of the argument cap_len leads to null pointer dereference. It is recommended to apply a patch to fix this issue. VDB-211086 is the identifier assigned to this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Kernel | — | — |
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 | 5.65-1 | — |
| Debian 13 | bluez | 5.65-1 | — |
| Debian 12 | bluez | 5.65-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | bluez | 5.64-0ubuntu1.3 | USN-6809-1 |
| Ubuntu 20.04 LTS | bluez | 5.53-0ubuntu3.8 | USN-6809-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | bluez | 5.48-0ubuntu3.9+esm2 | USN-6809-1 |
| Ubuntu Pro 16.04 LTS | bluez | 5.37-0ubuntu5.3+esm4 | USN-6809-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | bluez | 5.62-150400.4.8.1 | SUSE-SU-2023:0167-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | bluez | 5.62-150400.4.8.1 | SUSE-SU-2023:0167-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | bluez +7 | 5.62-2.amzn2023.0.4 | ALAS2023-2023-262 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | bluez | 5.63-4 | — |
| Azure Linux 2 (CBL-Mariner) | bluez | 5.63-4 | — |
Advisories 4
- USN-6809-1 bluez vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- WID-SEC-2022-1761 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 18, 2026
- SUSE-SU-2023:0167-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2023-262 Low: bluez security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 20, 2023