SQL Writer Service doesn’t handle database snapshots (for example, "CREATE DATABASE DataSnapName AS SNAPSHOT") in non-component backup code path in SQL Server 2016, 2017 or 2019. You may notice the following error log entry when you run BACKUP DATABASE against the snapshots during a Volume Shadow Copy Service (VSS) backup operation.

It requires you to kill the SQL Writer Service to unblock the situation. Among SPID blocked by this head blocker, there will often be a DBSTARTUP SPID (alwayson Secondary DB redo). Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

When you run a non-component VSS backup (for example, by using Azure Site Recovery (ASR) Agent) against volumes of servers hosting SQL Server 2016 instances, the backup jobs may report failure with the following events logged in the Application Event log. Operation: PrepareForSnapshot Event. Context: Execution Context: Writer. Writer Class Id: ID.

Assume that you use Microsoft SQL Server 2012 non-English version. When you install SQL Server 2012 Service Pack 2 (SP2) Cumulative Update 2 (CU2), the SQL Writer component is patched incorrectly. The setup procedure does not detect the SQL Writer installation, and you receive the following messages in Details.txt:

Fixes an issue in which event ID 24581 is logged when some VSS backup operations are running at the same time in SQL Server 2008 R2, SQL Server 2012, or SQL Server 2014. This issue occurs when the auto-recovery option is enabled.

Run SQLServer2012-KB2983175-x64.exe to install cumulative update 2 for SQL Server 2012 SP2. Prepare the original installation media. Status. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Use the action and error to determine the cause of the failure and resubmit the request.'. Use the reported error to determine the cause of the failure and then execute sys.sp_cdc_vupgrade in the database context to rerun upgrade. <DateTime> sp_vupgrade_replication executed successfully.

Resolves a vulnerability in SQL Server that could allow remote code execution if untrusted users have access to an affected system or if a SQL injection vulnerability exists on an affected system.

Microsoft is working on a fix for this issue and it will be available in a future CU. A downloadable Excel workbook that contains a summary list of builds, together with their current support lifecycle, is available. The Excel file also contains detailed fix lists. Download this Excel file now.

Microsoft has released security bulletin MS08-040. To view the complete security bulletin, visit one of the following Microsoft Web sites: The following table lists the known issues with this security update. To use the table, look in the top two rows of the table.