June's Patch Tuesday fixes 7 zero-day Windows flaws, most exploited in the wild
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It’s Patch Tuesday, and this month’s update is a doozy, fixing 7 zero-day exploits, of which 6 have been exploited in the wild, and a total of 50 flaws altogether, five classified as Critical and forty-five as Important.
The six actively exploited zero-day vulnerabilities are:
- CVE-2021-31955 – Windows Kernel Information Disclosure Vulnerability
- CVE-2021-31956 – Windows NTFS Elevation of Privilege Vulnerability
- CVE-2021-33739 – Microsoft DWM Core Library Elevation of Privilege Vulnerability
- CVE-2021-33742 – Windows MSHTML Platform Remote Code Execution Vulnerability
- CVE-2021-31199 – Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
- CVE-2021-31201 – Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
CVE-2021-31968 – Windows Remote Desktop Services Denial of Service Vulnerability, was publicly disclosed but fortunately not used in the wild.
The other fixes included in Patch Tuesday are listed below:
| Tag | CVE ID | CVE Title | Severity |
|---|---|---|---|
| .NET Core & Visual Studio | CVE-2021-31957 | .NET Core and Visual Studio Denial of Service Vulnerability | Important |
| 3D Viewer | CVE-2021-31942 | 3D Viewer Remote Code Execution Vulnerability | Important |
| 3D Viewer | CVE-2021-31943 | 3D Viewer Remote Code Execution Vulnerability | Important |
| 3D Viewer | CVE-2021-31944 | 3D Viewer Information Disclosure Vulnerability | Important |
| Microsoft DWM Core Library | CVE-2021-33739 | Microsoft DWM Core Library Elevation of Privilege Vulnerability | Important |
| Microsoft Edge (Chromium-based) | CVE-2021-33741 | Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability | Important |
| Microsoft Intune | CVE-2021-31980 | Microsoft Intune Management Extension Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2021-31940 | Microsoft Office Graphics Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2021-31941 | Microsoft Office Graphics Remote Code Execution Vulnerability | Important |
| Microsoft Office Excel | CVE-2021-31939 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office Outlook | CVE-2021-31949 | Microsoft Outlook Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-31964 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-31963 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Critical |
| Microsoft Office SharePoint | CVE-2021-31950 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-31948 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-31966 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-31965 | Microsoft SharePoint Server Information Disclosure Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-26420 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft Scripting Engine | CVE-2021-31959 | Scripting Engine Memory Corruption Vulnerability | Critical |
| Microsoft Windows Codecs Library | CVE-2021-31967 | VP9 Video Extensions Remote Code Execution Vulnerability | Critical |
| Paint 3D | CVE-2021-31946 | Paint 3D Remote Code Execution Vulnerability | Important |
| Paint 3D | CVE-2021-31983 | Paint 3D Remote Code Execution Vulnerability | Important |
| Paint 3D | CVE-2021-31945 | Paint 3D Remote Code Execution Vulnerability | Important |
| Role: Hyper-V | CVE-2021-31977 | Windows Hyper-V Denial of Service Vulnerability | Important |
| Visual Studio Code – Kubernetes Tools | CVE-2021-31938 | Microsoft VsCode Kubernetes Tools Extension Elevation of Privilege Vulnerability | Important |
| Windows Bind Filter Driver | CVE-2021-31960 | Windows Bind Filter Driver Information Disclosure Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2021-31954 | Windows Common Log File System Driver Elevation of Privilege Vulnerability | Important |
| Windows Cryptographic Services | CVE-2021-31201 | Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability | Important |
| Windows Cryptographic Services | CVE-2021-31199 | Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability | Important |
| Windows DCOM Server | CVE-2021-26414 | Windows DCOM Server Security Feature Bypass | Important |
| Windows Defender | CVE-2021-31978 | Microsoft Defender Denial of Service Vulnerability | Important |
| Windows Defender | CVE-2021-31985 | Microsoft Defender Remote Code Execution Vulnerability | Critical |
| Windows Drivers | CVE-2021-31969 | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | Important |
| Windows Event Logging Service | CVE-2021-31972 | Event Tracing for Windows Information Disclosure Vulnerability | Important |
| Windows Filter Manager | CVE-2021-31953 | Windows Filter Manager Elevation of Privilege Vulnerability | Important |
| Windows HTML Platform | CVE-2021-31971 | Windows HTML Platform Security Feature Bypass Vulnerability | Important |
| Windows Installer | CVE-2021-31973 | Windows GPSVC Elevation of Privilege Vulnerability | Important |
| Windows Kerberos | CVE-2021-31962 | Kerberos AppContainer Security Feature Bypass Vulnerability | Important |
| Windows Kernel | CVE-2021-31951 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2021-31955 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows Kernel-Mode Drivers | CVE-2021-31952 | Windows Kernel-Mode Driver Elevation of Privilege Vulnerability | Important |
| Windows MSHTML Platform | CVE-2021-33742 | Windows MSHTML Platform Remote Code Execution Vulnerability | Critical |
| Windows Network File System | CVE-2021-31975 | Server for NFS Information Disclosure Vulnerability | Important |
| Windows Network File System | CVE-2021-31974 | Server for NFS Denial of Service Vulnerability | Important |
| Windows Network File System | CVE-2021-31976 | Server for NFS Information Disclosure Vulnerability | Important |
| Windows NTFS | CVE-2021-31956 | Windows NTFS Elevation of Privilege Vulnerability | Important |
| Windows NTLM | CVE-2021-31958 | Windows NTLM Elevation of Privilege Vulnerability | Important |
| Windows Print Spooler Components | CVE-2021-1675 | Windows Print Spooler Elevation of Privilege Vulnerability | Important |
| Windows Remote Desktop | CVE-2021-31968 | Windows Remote Desktop Services Denial of Service Vulnerability | Important |
| Windows TCP/IP | CVE-2021-31970 | Windows TCP/IP Driver Security Feature Bypass Vulnerability | Important |
Given that some of the flaws are being actively exploited, it would be a good idea to protect your device as soon as possible. You can download the patches by Checking for Updates in Settings.
via BleepingComputer
