Since a few weeks UR#3 for SCOM 2012 R2 is out. KB2965445 describes this UR in more detail.
Kevin Holman has written a posting all about installing this update, to be found here.
A word of advice:
I know I repeat myself: Be careful with rolling out this UR since it wouldn’t be the first time an UR for SCOM breaks something… So TEST it first before rolling it out in production…