Summary. Denial of service vulnerabilities exist when .NET Framework incorrectly handles objects in heap memory, or when .NET Framework and .NET Core incorrectly process RegEx strings.

How to obtain and install the update Method 1: Windows Update. This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically.

Follow the steps below to download the uninstall support tool according to your browser. Tip: The tool may take a few minutes to download and install. After completing the installation, the Uninstall Office products window will open. Edge or Chrome. In the lower-lower left or upper-right corner, right-click SetupProd_OffScrub.exe > Open.

Enhanced Key Usage (EKU) is described in RFC 5280 in section 4.2.1.12: This extension indicates one or more purposes for which the certified public key may be used, in addition to or in place of the basic purposes that are indicated in the key usage extension.For example, a certificate that’s used for the authentication of a client to a server must be configured for Client Authentication.

Summary. This security update resolves a vulnerability in Microsoft .NET Framework that could allow remote code execution when .NET Framework processes untrusted input.

The updates are now available for installation through WSUS. Update deployment information. For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

To work around this problem, you may be able to reduce Native Image Generation times somewhat by forcing NGen.exe to generate new Native Images without regard for what was previously generated. To improve regeneration times, immediately before you install the .NET Framework 4 update, open an elevated command prompt and run the following commands.

Faulting application path: C:\Windows\SysWOW64\CCM\CcmExec.exe Faulting module path: C:\Windows\SysWOW64\ntdll.dll. Cause. This issue occurs because an access violation occurs in the Ntdll.dll module, and then the wrong function is called in the Caltrack.dll module. Resolution

IMPORTANT Some customers who use Windows Server 2008 R2 SP1 and have activated their ESU multiple activation key (MAK) add-on before installing the January 14, 2020 updates might need to re-activate their key. Re-activation on the affected devices should only be required once. For information on activation, see this blog post.

The updates are now available for installation through WSUS. Update deployment information. For deployment details for this security update, go to the following article in the Microsoft Knowledge Base: