dbus-glib is an add-on library to integrate the standard D-Bus library withthe GLib main loop and threading model. NetworkManager is a network linkmanager that attempts to keep a wired or wireless network connection activeat all times.It was discovered that dbus-glib did not enforce the "access" flag onexported GObject properties. If such a property were read/write internallybut specified as read-only externally, a malicious, local user could usethis flaw to modify that property of an application. Such a change couldimpact the application's behavior (for example, if an IP address werechanged the network may not come up properly after reboot) and possiblylead to a denial of service. (CVE-2010-1172)Due to the way dbus-glib translates an application's XML definitions ofservice interfaces and properties into C code at application build time,applications built against dbus-glib that use read-only properties neededto be rebuilt to fully fix the flaw. As such, this update providesNetworkManager packages that have been rebuilt against the updateddbus-glib packages. No other applications shipped with Red Hat EnterpriseLinux 5 were affected.All dbus-glib and NetworkManager users are advised to upgrade to theseupdated packages, which contain a backported patch to correct this issue.Running instances of NetworkManager must be restarted (serviceNetworkManager restart) for this update to take effect.