CVE-2023-34969

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.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-25)

CWE

CWE-404

Published

2023-06-08

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• fedoraproject:fedora
• freedesktop:dbus

References

• https://gitlab.freedesktop.org/dbus/dbus/-/issues/457
• https://lists.debian.org/debian-lts-announce/2023/10/msg00033.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZYCDRMD7B4XO4HF6C6YTLH4YUD7TANP/
• https://security.netapp.com/advisory/ntap-20231208-0007/
• https://gitlab.freedesktop.org/dbus/dbus/-/issues/457

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