Assume that you run DBCC CHECKDB or DBCC CHECKTABLE against a database or a table that contains a columnstore index, and the columnstore index contains both positive and negative zero values. In this situation, the DBCC query may return false positives for data corruption. Additionally, when you rebuild the columnstore index, an assertion failure may occur.
Service pack information
This issue was first fixed in the following Service Pack for SQL Server.
Service Pack 2 for SQL Server 2014
SQL Server 2016 Service Pack 1
About Service packs for SQL Server
Service packs are cumulative. Each new service pack contains all the fixes that are in previous service packs, together with any new fixes. Our recommendation is to apply the latest service pack and the latest cumulative update for that service pack. You don't have to install a previous service pack before you install the latest service pack. Use Table 1 in the following article for finding more information about the latest service pack and latest cumulative update.
How to determine the version, edition and update level of SQL Server and its components?