December cumulative updates: SharePoint 2013.

December 9, 2014 Cumulative Update for SharePoint Server 2013 package

http://support.microsoft.com/kb/2910945

http://support.microsoft.com/kb/2910938

Description of the Office updates: December 9, 2014

http://support.microsoft.com/kb/3020812

Office 2013 cumulative update for December 2014

http://support.microsoft.com/kb/3020816

Applies to: SharePoint server 2013.