Good news! UR2 is for System Center 2012 SP1 is available to download. Bug fix is listed in here.
Manual download the update is available as listed below. No SCVMM and SCCM update.
App Controller (KB2815569)
Operations Manager (KB2828615)
Operations Manager - UNIX and Linux Monitoring (Management Pack Update) (KB2828653)
Service Manager (KB2828618)
Data Protection Manager (KB2822782)