Description
BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| bluez | bluez | = 5.58 | — |
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 | 5.62-2 | — |
| Debian 13 | bluez | 5.62-2 | — |
| Debian 12 | bluez | 5.62-2 | — |
| Debian 11 | bluez | 5.55-3.1+deb11u2 | DLA-3879-1 |
| Debian 10 | bluez | 5.50-1.2~deb10u3 | DLA-3157-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | bluez | 5.43-2+deb9u5 | DLA-2827-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | bluez | 5.62-0ubuntu2 | — |
| Ubuntu 20.04 LTS | bluez | 5.53-0ubuntu3.4 | USN-5155-1 |
| Ubuntu 18.04 LTS | bluez | 5.48-0ubuntu3.6 | USN-5155-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | bluez | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | bluez +5 | 5.56-3.el8 | RHSA-2022:2081 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | bluez +5 | 5.56-3.el8 | ALSA-2022:2081 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | bluez | 5.56-3.el8 | RLSA-2022:2081 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
| SLES 15 SP2 | bluez | 5.48-150200.13.30.1 | SUSE-SU-2024:0167-1 |
| SLES 15 SP1 | bluez | 5.48-150000.5.54.1 | SUSE-SU-2024:0166-1 |
| SLES 12 SP5 | bluez | 5.13-5.42.2 | SUSE-SU-2023:3689-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | bluez | 5.48-150200.13.30.1 | SUSE-SU-2024:0167-1 |
| SLES for SAP 15 SP1 | bluez | 5.48-150000.5.54.1 | SUSE-SU-2024:0166-1 |
| SLES for SAP 12 SP5 | bluez | 5.13-5.42.2 | SUSE-SU-2023:3689-1 |
| SLE Micro 5.4 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
| SLE Micro 5.3 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
| SLE HPC 15 SP2 | bluez | 5.48-150200.13.30.1 | SUSE-SU-2024:0167-1 |
| SLE HPC 15 SP1 | bluez | 5.48-150000.5.54.1 | SUSE-SU-2024:0166-1 |
| SUSE Manager Server 4.2 | bluez | 5.55-150300.3.25.1 | SUSE-SU-2023:3240-1 |
| SUSE Manager Proxy 4.2 | bluez | 5.55-150300.3.25.1 | SUSE-SU-2023:3240-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
| openSUSE Leap Micro 5.3 | bluez | 5.62-150400.4.16.1 | SUSE-SU-2023:3238-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | bluez +5 | 5.56-3.el8 | ELSA-2022-2081 |
Advisories 14
- ALSA-2022:2081 Low: bluez security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:2081 Red Hat Security Advisory: bluez security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-5155-1 bluez vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3157-1 bluez - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2827-1 bluez - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3879-1 bluez - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:2081 Low: bluez security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:0167-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3240-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3689-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:0166-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3238-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1836 Red Hat Enterprise Linux (BlueZ): Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Dec 17, 2024
- ELSA-2022-2081 Low: bluez security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 17, 2022
References
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
- [debian-lts-announce] 20211127 [SECURITY] [DLA 2827-1] bluez security update mailing-list
- https://security.netapp.com/advisory/ntap-20211203-0004/
- [debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update mailing-list