Description
D-Bus before 1.15.6 sometimes allows unprivileged users to crash dbus-daemon. If a privileged user with control over the dbus-daemon is using the org.freedesktop.DBus.Monitoring interface to monitor message bus traffic, then an unprivileged user with the ability to connect to the same dbus-daemon can cause a dbus-daemon crash under some circumstances via an unreplyable message. When done on the well-known system bus, this is a denial-of-service vulnerability. The fixed versions are 1.12.28, 1.14.8, and 1.15.6.
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 | dbus | 1.14.8-1 | — |
| Debian 13 | dbus | 1.14.8-1 | — |
| Debian 12 | dbus | 1.14.8-1~deb12u1 | — |
| Debian 10 | dbus | 1.12.28-0+deb10u1 | DLA-3628-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | dbus | No fix yet | — |
| Ubuntu 20.04 LTS | dbus | No fix yet | — |
| Ubuntu 18.04 LTS | dbus | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | dbus | 1.10.6-1ubuntu3.6+esm3 | USN-6372-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | dbus +6 | 1:1.12.20-7.el9_2.1 | RHSA-2023:4569 |
| RHEL 8 | dbus +6 | 1:1.12.8-24.el8_8.1 | RHSA-2023:4498 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.6 EUS | dbus +6 | 1:1.12.8-18.el8_6.3 | RHSA-2023:5193 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | dbus +6 | 1:1.12.20-7.el9_2.1 | ALSA-2023:4569 |
| AlmaLinux 8 | dbus +6 | 1:1.12.8-24.el8_8.1 | ALSA-2023:4498 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | dbus | 1:1.12.20-7.el9_2.1 | RLSA-2023:4569 |
| Rocky Linux 8 | dbus | 1:1.12.8-24.el8_8.1 | RLSA-2023:4498 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
| SLES 15 SP4 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
| SLES 12 SP5 | dbus-1 +1 | 1.8.22-44.1 | SUSE-SU-2023:2876-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | dbus-1 +1 | 1.8.22-44.1 | SUSE-SU-2023:2876-1 |
| SLE Real Time 15 SP3 | dbus-1 +1 | 1.12.2-150100.8.17.1 | SUSE-SU-2023:2879-1 |
| SLE Micro 5.4 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
| SLE Micro 5.3 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
| SLE Micro 5.2 | dbus-1 +1 | 1.12.2-150100.8.17.1 | SUSE-SU-2023:2879-1 |
| SLE Micro 5.1 | dbus-1 | 1.12.2-150100.8.17.1 | SUSE-SU-2023:2879-1 |
| SUSE Manager Server 4.2 | dbus-1 +1 | 1.12.2-150100.8.17.1 | SUSE-SU-2023:2879-1 |
| SUSE Manager Proxy 4.2 | dbus-1 +1 | 1.12.2-150100.8.17.1 | SUSE-SU-2023:2879-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | dbus-1 | 1.14.8-1.1 | openSUSE-SU-2024:12996-1 |
| openSUSE Leap 15.5 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
| openSUSE Leap 15.4 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | dbus-1 +1 | 1.12.2-150400.18.8.1 | SUSE-SU-2023:2877-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | dbus +8 | 1:1.12.28-1.amzn2023.0.1 | ALAS2023-2023-213 |
| Amazon Linux 2 | dbus +5 | 1:1.10.24-7.amzn2.0.4 | ALAS2-2024-2428 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | dbus | 1.15.6-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | dbus +6 | 1:1.12.20-7.0.1.el9_2.1 | ELSA-2023-4569 |
| Oracle Linux 8 | dbus +6 | 1:1.12.8-24.0.1.el8_8.1 | ELSA-2023-4498 |
Advisories 25
- WID-SEC-2023-1402 dbus: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 5, 2026
- ALSA-2023:4569 Moderate: dbus security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:4498 Moderate: dbus security update AlmaLinux Security Advisories · Oct 29, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2023:4569 Red Hat Security Advisory: dbus security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:5193 Red Hat Security Advisory: dbus security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:4498 Red Hat Security Advisory: dbus security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6372-1 dbus vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3628-1 dbus - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:4498 Moderate: dbus security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2023:4569 Moderate: dbus security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:12996-1 dbus-1-1.14.8-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2879-1 Security update for dbus-1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2877-1 Security update for dbus-1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2876-1 Security update for dbus-1 SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- VDE-2024-073 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · May 22, 2025
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
- ICSA-24-046-11 Siemens SCALANCE XCM-/XRM-300 CISA ICS & IT advisories · Feb 13, 2024
- SSA-806742 SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4 Siemens ProductCERT · Feb 13, 2024
- ALAS2-2024-2428 Moderate: dbus security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 22, 2024
- ELSA-2023-4569 Moderate: dbus security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 10, 2023
- ELSA-2023-4498 Moderate: dbus security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 8, 2023
- ALAS2023-2023-213 Moderate: dbus security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 27, 2023