Security Update for SQL Server 2016 SP1 CU15 (KB4505221)

A remote code execution vulnerability exists in Microsoft SQL Server when it incorrectly handles processing of internal functions. An attacker who successfully exploited this vulnerability could execute code in the context of the SQL Server Database Engine service account.
To exploit the vulnerability, an authenticated attacker would need to submit a specially crafted query to an affected SQL server. The security update addresses the vulnerability by modifying how the Microsoft SQL Server Database Engine handles the processing of functions.

More information about the vulnerability can be found here: KB4505221

Supported SQL Server versions impacted are:
SQL Server 2016 SP1 CU15 when running on x64 processor systems.

At the current time, the following patched SQL Server security updates are available for download:
SQL Server 2014 SP2 GDR (KB4505217)
SQL Server 2014 SP2 CU17 + GDR (KB4505419)
SQL Server 2014 SP3 GDR (KB4505218)
SQL Server 2014 SP3 CU3 + GDR (KB4505422)
SQL Server 2016 SP1 GDR (KB4505219)
SQL Server 2016 SP1 CU15 + GDR (KB4505221)
SQL Server 2016 SP2 GDR (KB4505220)
SQL Server 2016 SP2 CU7 + GDR (KB4505222)
SQL Server 2017 RTM GDR (KB4505224)
SQL Server 2017 CU15 + GDR (KB4505225)

For a complete listing of the issues resolved in this update, see the associated Microsoft Knowledge Base article. After you install this update, you may have to restart your computer.

Supported Operating Systems

Windows 10, Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019

This update is applicable to SQL Server 2016 SP1 CU15 instances.

Download the appropriate file for your computer's processor by clicking one of the links below. You can run the package directly from the link or save it on your local disk to install at a later time.