D-Bus before 1.15.6 sometimes allows unprivileged users to crash dbus-daemon.
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 6 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-404.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* | 1.12.0 to before 1.12.28; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.6 | Vulnerable | Freedesktop |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* Versions 1.12.0 to before 1.12.28; 1.14.0 to before 1.14.8; 1.15.0 to before 1.15.6 Vulnerable ·Freedesktop
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
Red Hat 3 advisories
- RHSA-2023:5193 Released 2023-09-18 · Red Hat rating Moderatedbus security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) dbus-devel-1:1.12.8-18.el8_6.3, dbus-x11-1:1.12.8-18.el8_6.3
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) dbus-1:1.12.8-18.el8_6.3, dbus-common-1:1.12.8-18.el8_6.3, dbus-daemon-1:1.12.8-18.el8_6.3 +2
- RHSA-2023:4569 Released 2023-08-08 · Red Hat rating Moderatedbus security update
- Red Hat Enterprise Linux AppStream (v. 9) dbus-daemon-1:1.12.20-7.el9_2.1, dbus-devel-1:1.12.20-7.el9_2.1, dbus-x11-1:1.12.20-7.el9_2.1
- Red Hat Enterprise Linux BaseOS (v. 9) dbus-1:1.12.20-7.el9_2.1, dbus-common-1:1.12.20-7.el9_2.1, dbus-libs-1:1.12.20-7.el9_2.1 +1
- RHSA-2023:4498 Released 2023-08-07 · Red Hat rating Moderatedbus security update
- Red Hat Enterprise Linux AppStream (v. 8) dbus-devel-1:1.12.8-24.el8_8.1, dbus-x11-1:1.12.8-24.el8_8.1
- Red Hat Enterprise Linux BaseOS (v. 8) dbus-1:1.12.8-24.el8_8.1, dbus-common-1:1.12.8-24.el8_8.1, dbus-daemon-1:1.12.8-24.el8_8.1 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:4498 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:4569 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2023:5193 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2023:4498 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:4569 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.6) | Fixed | RHSA-2023:5193 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2023-34969
- 2026-10-03 Alias added: GHSA-q652-p9gf-vfq3
References
Sources
- CVE-2023-34969 · CVE Program
- CVE-2023-34969 · NVD
- FIRST EPSS
- GHSA-q652-p9gf-vfq3 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-34969 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences