Assume that you use SQL Server 2017 on Linux. When you connect to SQL Server by using the TCP/IP protocol, a handle leak might occur. Over time, this leak can exhaust the handle table or memory, leading to varied and unexpected behavior, such as out-of-memory errors, unable to open new connections, and so on.
This fix is included in Cumulative Update 4 for SQL Server 2017.
About SQL Server 2017 builds
Each new build for SQL Server 2017 contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for SQL Server 2017.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.