Symptoms
Assume that you use Microsoft SQL Server 2012 Integration Services (SSIS 2012) or SSIS 2014. When you transfer data from an OLE DB source to a SQL Server destination in a data flow component, certain fields are corrupted in some rows of the target SQL Server table.
Note The issue does not occur when you use the OLE DB destination.Resolution
The issue was first fixed in the following cumulative update of SQL Server.
Cumulative Update 5 for SQL Server 2014 /en-us/help/3011055
Cumulative Update 3 for SQL Server 2012 SP2 /en-us/help/3002049
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:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.