This is NOT just for JB devices. There are other forum threads elsewhere on the net which discuss this. The problem is rare, but happens to enuf people that its 'a thing'. Apple wont (yet) acknowledge the problem. Its possible to update the apps using an alternate method ... choose 'Purchased' at bottom of App Store view. For each app, click into the space in the middle of the entry (to right of icon, to left of [OPEN] button). You will see a pop-up window which will have an [UPDATE] option, click on that and it will update the app. But, this will not resolve the problem (will re-occur when next update for the app is pushed to app store).
11-12-2014 06:39 PM