Please see the following Knowledge Base article for complete details about fixes and installation instructions for DPM 2012 R2:
3065246 Update Rollup 7 for System Center 2012 R2 Data Protection Manager
For all the latest information regarding Update Rollup 7 for System Center 2012 R2 please see the following:
3069110 Description of Update Rollup 7 for System Center 2012 R2