to fix the setting in passbook....Go to Settings>General>Date and Time>Set Automatically>Off. Set the date one year ahead. Try to update the apps again. If you get an error message, go back to the settings. Correct the date and time (set automatically) then go back and try to update the apps again.
Saw this on the front page. Doesn't work for me though. The entire app store/passbook is completely useless to me until apple fixes this.