Windows 8.1 KB4025333 – security update and Windows Server 2012 R2 KB4025336 – monthly rollup

Microsoft released a security update and a monthly rollup for Windows 8.1 and Windows Server 2012 R2 on July 11.

KB4025333 (Security-only update)

This security update includes a few quality improvements, and no new operating system features were introduced in its contents.

The update features security updates for Windows kernel, ASP.NET, Internet Explorer 11, Windows Search, Windows Storage and File Systems, Datacenter Networking, Windows Virtualization, Windows Server, Windows Shell, Microsoft NTFS, Microsoft PowerShell, Windows Kernel-Mode Drivers, and Microsoft Graphics Component.

You can get more information on the security flaws and vulnerabilities resolved by going to the Security Update Guide.

After you install the updates for CVE-2017-8563, admins need to set the registry key LdapEnforceChannelBinding to enable the fix for CVE.

A known issue with this update is the fact that if an iSCSI target becomes unavailable, the attempts to reconnect will cause a leak. Initiating a new connection to an available target will work well. Microsoft will offer a solution in a forthcoming release.

KB4025336 (Monthly Rollup)

• This security update features a bunch of fixes and improvements that were a part of update KB4022720 released back on June 27, and it fixed the following issues:
• The problem that was called out in KB402270 where Internet Explorer 11 was closing unexpectedly when you visited particular websites was fixed.
• The issue that caused .jpx and jbig2. images to stop rendering in PDF files was fixed.
• It offers a few security updates for Windows kernel, ASP.NET, Internet Explorer 11, Windows Search, Windows Storage and Files Systems, Datacenter Networking, Windows Virtualization, Windows Server, Windows Shell, Microsoft NTFS, Microsoft PowerShell, Windows kernel-mode drivers, and Microsoft Graphics Component.

You can download this update automatically from Windows Update.

An issue with this update is the fact that if an iSCSI target becomes unavailable, the attempts to reconnect will lead to a leak. Initiating a new connection to an available target will work well. Microsoft will offer a solution in a forthcoming release.

RELATED STORIES TO CHECK OUT:

• Microsoft rolls out Windows 8.1 KB4019213, KB4019215 on Patch Tuesday
• Windows 8.1 KB4015547 and KB4015550 fix a long list of security issues
• KB4012598 patches Windows XP/Windows 8 against WannaCry ransomware