Microsoft SQL Server 2008 SP3 and SP4, 2008 R2 SP2 and SP3, 2012 SP1 and SP2, and 2014 uses an incorrect class during casts of unspecified …

Microsoft SQL Server 2008 SP3 and SP4, 2008 R2 SP2 and SP3, 2012 SP1 and SP2, and 2014 uses an incorrect class during casts of unspecified pointers, which allows remote authenticated users to gain privileges by leveraging certain write access, aka "SQL Server Elevation of Privilege Vulnerability."