# CVE-2023-34969: Denial of service in n/a > Unprivileged users can crash the D-Bus daemon via unreplyable messages when monitoring is enabled, causing a denial of service. - **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 8 Jun 2023 - **Updated:** 14 Oct 2026 - **Also known as:** ALSA-2023:4498, ALSA-2023:4569, AZL-27178, DEBIAN-CVE-2023-34969, DLA-3628-1, GHSA-q652-p9gf-vfq3, JLSEC-2025-22, OESA-2023-1375, RHSA-2023:4498, RHSA-2023:4569, RHSA-2023:5193, RLSA-2023:4498, RLSA-2023:4569, SUSE-SU-2023:2876-1, SUSE-SU-2023:2877-1, SUSE-SU-2023:2879-1, UBUNTU-CVE-2023-34969, USN-6372-1, openSUSE-SU-2024:12996-1 ## What is CVE-2023-34969? CVE-2023-34969 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 8 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim. ### Official 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. Weakness: CWE-404 (Improper Resource Shutdown or Release) ## Which versions are affected by CVE-2023-34969? It affects 3 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `dbus` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-common` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-daemon` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-devel` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-libs` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tools` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-x11` | AlmaLinux:8 | All versions | 1:1.12.8-24.el8_8.1 | | `dbus` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-common` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-daemon` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-devel` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-libs` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-tools` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-x11` | AlmaLinux:9 | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-daemon-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-libs-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tests-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tools-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-x11` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-x11-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 1:1.12.8-24.el8_8.1 | | `dbus` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-common` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-daemon` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-daemon-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-debugsource` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-libs` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-libs-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tests-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tools` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-tools-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-x11-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 1:1.12.8-24.el8_8.1 | | `dbus-daemon` | Red Hat:enterprise_linux:9::appstream | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-daemon-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-debugsource` | Red Hat:enterprise_linux:9::appstream | All versions | 1:1.12.20-7.el9_2.1 | | `dbus-devel` | Red Hat:enterprise_linux:9::appstream | All versions | 1:1.12.20-7.el9_2.1 | Products: Debian Debian Linux, Fedoraproject Fedora, Freedesktop Dbus. ## How do I fix CVE-2023-34969? Upgrade to a fixed version. ## Is CVE-2023-34969 being exploited? There is no known exploitation of CVE-2023-34969 in the wild and no public exploit code. ## Other vulnerabilities in Debian Debian Linux - [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild) - [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild) - [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild) - [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild) - [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-34969 and fix it if it is affected. What it is: CVE-2023-34969 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 8 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2023-34969 in the wild and no public exploit code. Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2023-34969/ (Markdown: https://insights.sbomify.com/CVE-2023-34969/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34969 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34969 - OSV: https://osv.dev/vulnerability/CVE-2023-34969 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-34969/ Summaries are generated and may contain mistakes; the official description above is the record.