CVE-2009-1189: Freedesktop Dbus

Low severity, CVSS 3.6. EPSS: 1.3% chance of exploitation in the next 30 days.

The _dbus_validate_signature_with_reason function (dbus-marshal-validate.c) in D-Bus (aka DBus) before 1.2.14 uses incorrect logic to validate a basic type, which allows remote attackers to spoof a signature via a crafted key. NOTE: this is due to an incorrect fix for CVE-2008-3834.

Affected products

• Freedesktop Dbus: up to and including 1.2.3; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-04-27. Last modified 2026-06-16.