This security update includes improvements and fixes that were a part of update KB4057401 (released January 17, 2018) and addresses the following issues:
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Addresses a script-related issue that caused Internet Explorer to stop working in some cases.
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Addresses issue with editing input fields in some applications in Internet Explorer.
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Addresses issue with launching a new page in Internet Explorer.
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Addresses issue where after installing KB4056895 or KB4056898 on an SMB server, accessing files in directory junction points or volume mount points hosted on the server may fail. The error is “ERROR_INVALID_REPARSE_DATA”. For example, the following symptom may be observed:
Editing some group policies using GPMC or AGPM 4.0 may fail with the error "The data present in the reparse point buffer is invalid. (Exception from HRESULT: 0x80071128)".
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Addresses issue where when SharePoint writes to a SQL Server filestream share with SMB3 encryption enabled, the write may fail or execute very slowly.
- Security updates to Internet Explorer, Windows Kernel, Common Log File System driver, Windows storage and file systems, Microsoft Windows Search component, and the Windows SMB Server.
For more information about the resolved security vulnerabilities, see the Security Update Guide.