Microsoft October 2020 Patch Tuesday Fixes 87 Security Bugs

Today is Microsoft’s October 2020 Patch Tuesday, and your Windows administrators will be pulling their hair out as they install new updates and try to fix bugs that pop up.

With the October 2020 Patch Tuesday security updates release, Microsoft has released fixes for 87 vulnerabilities in Microsoft products and an advisory about today’s Adobe Flash Player update.

Of the 87 vulnerabilities fixed today, 12 are classified as Critical, and 74 are classified as Important, and one as moderate.

For information about the non-security Windows updates, you can read about today’s Windows 10 KB4579311 & KB4577671 Cumulative Updates.

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Publicly disclosed vulnerabilities:

This month’s Patch Tuesday security updates include a whopping six publicly disclosed vulnerabilities. The good news is that Microsoft states that none of them have been seen publicly exploited.

One of the vulnerabilities, CVE-2020-16938, was found by security researcher Jonas L, who recently began disclosing vulnerabilities on Twitter after being frustrated by Microsoft’s bounty program.

• CVE-2020-16938 – Windows Kernel Information Disclosure Vulnerability
• CVE-2020-16885 – Windows Storage VSP Driver Elevation of Privilege Vulnerability
• CVE-2020-16901 – Windows Kernel Information Disclosure Vulnerability
• CVE-2020-16908 – Windows Setup Elevation of Privilege Vulnerability
• CVE-2020-16909 – Windows Error Reporting Elevation of Privilege Vulnerability
• CVE-2020-16937 – .NET Framework Information Disclosure Vulnerability

Microsoft has not disclosed who found the other five vulnerabilities.

Vulnerabilities of interest

While there were no zero-days this month, there were quite a few interesting vulnerabilities that can be exploited remotely.

Below are the more interesting Critical security vulnerabilities fixed today:

• “CVE-2020-16911 – GDI+ Remote Code Execution Vulnerability” lets attackers create specialty crafted websites that can execute commands with elevated privileges on the visitor’s computer.
• “CVE-2020-16947 – Microsoft Outlook Remote Code Execution Vulnerability” allows attackers to send specially crafted emails that can execute commands when opened in the Microsoft Outlook software.  This attack also works when an email is viewed in the preview pane.
• “CVE-2020-16898 – Windows TCP/IP Remote Code Execution Vulnerability” can be exploited by sending specially crafted ICMPv6 Router Advertisement packets to remote Windows computer. If successful, it could allow a remote attacker to execute commands on the targeted computer.
• “CVE-2020-16891 – Windows Hyper-V Remote Code Execution Vulnerability” would allow an attacker, or malware, on a guest Hyper-V virtual machine to execute commands on the host operating system.
• “CVE-2020-16915 – Media Foundation Memory Corruption Vulnerability” can be exploited for remote code execution by tricking a user into visiting a malicious website.

Recent security updates from other companies

Other vendors who released security updates in October include:

• Adobe released security updates today for Adobe Flash Player.
• Apple released security updates for macOS, tvOS, and watchOS.
• Intel released its October 2020 platform update.
• SAP released its October 2020 security updates today.

The October 2020 Patch Tuesday Security Updates

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Below is the full list of resolved vulnerabilities and released advisories in the October 2020 Patch Tuesday updates. To access the full description of each vulnerability and the systems that it affects, you can view the full report here.

Tag	CVE ID	CVE Title	Severity
.NET Framework	CVE-2020-16937	.NET Framework Information Disclosure Vulnerability	Important
Adobe Flash Player	ADV200012	October 2020 Adobe Flash Security Update	Critical
Azure	CVE-2020-16995	Network Watcher Agent Virtual Machine Extension for Linux Elevation of Privilege Vulnerability	Important
Azure	CVE-2020-16904	Azure Functions Elevation of Privilege Vulnerability	Important
Group Policy	CVE-2020-16939	Group Policy Elevation of Privilege Vulnerability	Important
Microsoft Dynamics	CVE-2020-16978	Microsoft Dynamics 365 (On-Premise) Cross Site Scripting Vulnerability	Important
Microsoft Dynamics	CVE-2020-16956	Microsoft Dynamics 365 (On-Premise) Cross Site Scripting Vulnerability	Important
Microsoft Dynamics	CVE-2020-16943	Dynamics 365 Commerce Elevation of Privilege Vulnerability	Important
Microsoft Exchange Server	CVE-2020-16969	Microsoft Exchange Information Disclosure Vulnerability	Important
Microsoft Graphics Component	CVE-2020-16911	GDI+ Remote Code Execution Vulnerability	Critical
Microsoft Graphics Component	CVE-2020-16914	Windows GDI+ Information Disclosure Vulnerability	Important
Microsoft Graphics Component	CVE-2020-16923	Microsoft Graphics Components Remote Code Execution Vulnerability	Critical
Microsoft Graphics Component	CVE-2020-1167	Microsoft Graphics Components Remote Code Execution Vulnerability	Important
Microsoft NTFS	CVE-2020-16938	Windows Kernel Information Disclosure Vulnerability	Important
Microsoft Office	CVE-2020-16933	Microsoft Word Security Feature Bypass Vulnerability	Important
Microsoft Office	CVE-2020-16929	Microsoft Excel Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16934	Microsoft Office Click-to-Run Elevation of Privilege Vulnerability	Important
Microsoft Office	CVE-2020-16932	Microsoft Excel Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16930	Microsoft Excel Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16955	Microsoft Office Click-to-Run Elevation of Privilege Vulnerability	Important
Microsoft Office	CVE-2020-16928	Microsoft Office Click-to-Run Elevation of Privilege Vulnerability	Important
Microsoft Office	CVE-2020-16957	Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16918	Base3D Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16949	Microsoft Outlook Denial of Service Vulnerability	Moderate
Microsoft Office	CVE-2020-16947	Microsoft Outlook Remote Code Execution Vulnerability	Critical
Microsoft Office	CVE-2020-16931	Microsoft Excel Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-16954	Microsoft Office Remote Code Execution Vulnerability	Important
Microsoft Office	CVE-2020-17003	Base3D Remote Code Execution Vulnerability	Critical
Microsoft Office SharePoint	CVE-2020-16948	Microsoft SharePoint Information Disclosure Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16953	Microsoft SharePoint Information Disclosure Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16942	Microsoft SharePoint Information Disclosure Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16951	Microsoft SharePoint Remote Code Execution Vulnerability	Critical
Microsoft Office SharePoint	CVE-2020-16944	Microsoft SharePoint Reflective XSS Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16945	Microsoft Office SharePoint XSS Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16946	Microsoft Office SharePoint XSS Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16941	Microsoft SharePoint Information Disclosure Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16950	Microsoft SharePoint Information Disclosure Vulnerability	Important
Microsoft Office SharePoint	CVE-2020-16952	Microsoft SharePoint Remote Code Execution Vulnerability	Critical
Microsoft Windows	CVE-2020-16900	Windows Event System Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16901	Windows Kernel Information Disclosure Vulnerability	Important
Microsoft Windows	CVE-2020-16899	Windows TCP/IP Denial of Service Vulnerability	Important
Microsoft Windows	CVE-2020-16908	Windows Setup Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16909	Windows Error Reporting Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16912	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16940	Windows – User Profile Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16907	Win32k Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16936	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16898	Windows TCP/IP Remote Code Execution Vulnerability	Critical
Microsoft Windows	CVE-2020-16897	NetBT Information Disclosure Vulnerability	Important
Microsoft Windows	CVE-2020-16895	Windows Error Reporting Manager Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16919	Windows Enterprise App Management Service Information Disclosure Vulnerability	Important
Microsoft Windows	CVE-2020-16921	Windows Text Services Framework Information Disclosure Vulnerability	Important
Microsoft Windows	CVE-2020-16920	Windows Application Compatibility Client Library Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16972	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16877	Windows Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16876	Windows Application Compatibility Client Library Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16975	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16973	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16974	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16922	Windows Spoofing Vulnerability	Important
Microsoft Windows	CVE-2020-0764	Windows Storage Services Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16980	Windows iSCSI Target Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-1080	Windows Hyper-V Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16887	Windows Network Connections Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16885	Windows Storage VSP Driver Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16924	Jet Database Engine Remote Code Execution Vulnerability	Important
Microsoft Windows	CVE-2020-16976	Windows Backup Service Elevation of Privilege Vulnerability	Important
Microsoft Windows	CVE-2020-16935	Windows COM Server Elevation of Privilege Vulnerability	Important
Microsoft Windows Codecs Library	CVE-2020-16967	Windows Camera Codec Pack Remote Code Execution Vulnerability	Critical
Microsoft Windows Codecs Library	CVE-2020-16968	Windows Camera Codec Pack Remote Code Execution Vulnerability	Critical
PowerShellGet	CVE-2020-16886	PowerShellGet Module WDAC Security Feature Bypass Vulnerability	Important
Visual Studio	CVE-2020-16977	Visual Studio Code Python Extension Remote Code Execution Vulnerability	Important
Windows COM	CVE-2020-16916	Windows COM Server Elevation of Privilege Vulnerability	Important
Windows Error Reporting	CVE-2020-16905	Windows Error Reporting Elevation of Privilege Vulnerability	Important
Windows Hyper-V	CVE-2020-16894	Windows NAT Remote Code Execution Vulnerability	Important
Windows Hyper-V	CVE-2020-1243	Windows Hyper-V Denial of Service Vulnerability	Important
Windows Hyper-V	CVE-2020-16891	Windows Hyper-V Remote Code Execution Vulnerability	Critical
Windows Installer	CVE-2020-16902	Windows Installer Elevation of Privilege Vulnerability	Important
Windows Kernel	CVE-2020-16889	Windows KernelStream Information Disclosure Vulnerability	Important
Windows Kernel	CVE-2020-16892	Windows Image Elevation of Privilege Vulnerability	Important
Windows Kernel	CVE-2020-16913	Win32k Elevation of Privilege Vulnerability	Important
Windows Kernel	CVE-2020-1047	Windows Hyper-V Elevation of Privilege Vulnerability	Important
Windows Kernel	CVE-2020-16910	Windows Security Feature Bypass Vulnerability	Important
Windows Media Player	CVE-2020-16915	Media Foundation Memory Corruption Vulnerability	Critical
Windows RDP	CVE-2020-16863	Windows Remote Desktop Service Denial of Service Vulnerability	Important
Windows RDP	CVE-2020-16927	Windows Remote Desktop Protocol (RDP) Denial of Service Vulnerability	Important
Windows RDP	CVE-2020-16896	Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability	Important
Windows Secure Kernel Mode	CVE-2020-16890	Windows Kernel Elevation of Privilege Vulnerability	Important