Please Install the Updated Packages.
Alban Crequy discovered that dbus-daemon incorrectly sent AccessDenied errors to the service instead of the client when enforcing permissions. A local user can use this issue to possibly deny access to the service. (CVE-2014-3477) Alban Crequy discovered that dbus-daemon incorrectly handled certain file descriptors. A local attacker could use this issue to cause services or clients to disconnect, resulting in a denial of service. (CVE-2014-3532, CVE-2014-3533)
dbus on Ubuntu 14.04 LTS , Ubuntu 13.10 , Ubuntu 12.04 LTS