Consider the following scenario:
You create a user-defined table type in Microsoft SQL Server 2012 or SQL Server 2014.
You add some extended properties at the column level to the user-defined table type.
You run a query against the sys.extended_properties table.
In this scenario, an access violation may occur in the SQL Server and a mini dump file is generated.
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.