Avahi no longer starting after todays update

[Roger Grosswiler]

Since this day, avahi is no longer starting:

This comes from /var/log/messages:

Jan 26 11:25:36 niobe avahi-daemon[2358]: Successfully dropped root
privileges.
Jan 26 11:25:36 niobe avahi-daemon[2358]: avahi-daemon 0.6.4 starting
up.
Jan 26 11:25:36 niobe avahi-daemon[2358]: dbus_bus_get(): Failed to
connect to s ocket /var/run/dbus/system_bus_socket: Permission denied


Trying afterwards without selinux.

Roger