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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/457 Exploit, Issue Tracking, Mitigation, Patch, Vendor Advisory
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/457 Exploit, Issue Tracking, Mitigation, Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · freedesktop, fedoraproject, debianNVD modified 2026-10-15 00:16
Affected (CPE criteria) 3
cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References 10
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/457 Exploit, Issue Tracking, Mitigation, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00033.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZYCDRMD7B4XO4HF6C6YTLH4YUD7TANP/ Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231208-0007/
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/457 Exploit, Issue Tracking, Mitigation, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00033.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZYCDRMD7B4XO4HF6C6YTLH4YUD7TANP/ Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231208-0007/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html