This is currently a known issue with SQLadmintoolset’s Patch Analyzer with SQL Server 2012 SP2 with CU7 installed. Development has noted this is bug and plans to fix it in a future release of SQLadmintoolset.
Currently, the only workaround for the crashes is to remove the CU7 update from your SQL Server 2012.
If you would like I can create a Support Case and attach it to the open Development ticket, so you can be notified when a release of SQLadmintoolset which includes a fix for this issue is available.
Idera Technical Support – SQL Products