Microsoft released the December 2023 Patch Tuesday updates yesterday , bringing fixes for 34 vulnerabilities and one zero-day vulnerability in AMD processors .
Among the vulnerabilities fixed are eight that could allow remote code execution (RCE). However, Microsoft only rated three of them as critical. In total, there were four critical bugs: one in Power Platform (Spoofing), two in Internet Connection Sharing (RCE), and one in Windows MSHTML Platform (RCE).
See also: CISA adds two Qlik Sense vulnerabilities to the KEV List
In the list below, you can see the categories of vulnerabilities fixed in Microsoft's December Patch Tuesday:
- 10 vulnerabilities that allow for elevation of privilege
- 8 vulnerabilities that allow remote code execution
- 6 vulnerabilities that allow information disclosure
- 5 vulnerabilities that allow Denial of Service attacks
- 5 Spoofing vulnerabilities
The total number of 34 vulnerabilities does not include 8 Microsoft Edge that were fixed on December 7.
See also: Apple fixes zero-day vulnerabilities in older iPhones
Patch Tuesday: Fixes a zero-day vulnerability
The December 2023 Patch Tuesday fixes a zero-day in AMD CPUs that was publicly disclosed in August. The vulnerability, “CVE-2023-20588 – AMD Speculative Leaks,” is a division-by-zero bug in certain AMD processors that could expose sensitive data.
Despite being disclosed in August, AMD has not provided any fixes. It has simply suggested the following: “For affected products, AMD recommends following best software development practices,” an AMD bulletin states.
“Developers can mitigate this issue by ensuring that privileged data is not used in division operations before changing privilege boundaries. AMD believes the potential impact of this vulnerability is low because it requires local access.“.
See also: Backup Migration: WordPress plugin vulnerable to critical vulnerability
As part of the December updates, Microsoft released a security update that resolves this bug on affected AMD.
Microsoft Patch Tuesday December 2023: All vulnerabilities fixed
In the table below, you can see all the vulnerabilities that Microsoft is patching this month in its products:
| Tags | CVE ID | CVE Title | Severity |
|---|---|---|---|
| Azure Connected Machine Agent | CVE-2023-35624 | Azure Connected Machine Agent Elevation of Privilege Vulnerability | Important |
| Azure Machine Learning | CVE-2023-35625 | Azure Machine Learning Compute Instance for SDK Users Information Disclosure Vulnerability | Important |
| Chipsets | CVE-2023-20588 | AMD: CVE-2023-20588 AMD Speculative Leaks Security Notice | Important |
| Microsoft Bluetooth Driver | CVE-2023-35634 | Windows Bluetooth Driver Remote Code Execution Vulnerability | Important |
| Microsoft Dynamics | CVE-2023-35621 | Microsoft Dynamics 365 Finance and Operations Denial of Service Vulnerability | Important |
| Microsoft Dynamics | CVE-2023-36020 | Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability | Important |
| Microsoft Edge (Chromium-based) | CVE-2023-35618 | Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability | Moderate |
| Microsoft Edge (Chromium-based) | CVE-2023-36880 | Microsoft Edge (Chromium-based) Information Disclosure Vulnerability | Low |
| Microsoft Edge (Chromium-based) | CVE-2023-38174 | Microsoft Edge (Chromium-based) Information Disclosure Vulnerability | Low |
| Microsoft Edge (Chromium-based) | CVE-2023-6509 | Chromium: CVE-2023-6509 Use after free in Side Panel Search | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-6512 | Chromium: CVE-2023-6512 Inappropriate implementation in Web Browser UI | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-6508 | Chromium: CVE-2023-6508 Use after free in Media Stream | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-6511 | Chromium: CVE-2023-6511 Inappropriate implementation in Autofill | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-6510 | Chromium: CVE-2023-6510 Use after free in Media Capture | Unknown |
| Microsoft Office Outlook | CVE-2023-35636 | Microsoft Outlook Information Disclosure Vulnerability | Important |
| Microsoft Office Outlook | CVE-2023-35619 | Microsoft Outlook for Mac Spoofing Vulnerability | Important |
| Microsoft Office Word | CVE-2023-36009 | Microsoft Word Information Disclosure Vulnerability | Important |
| Microsoft Power Platform Connector | CVE-2023-36019 | Microsoft Power Platform Connector Spoofing Vulnerability | Critical |
| Microsoft WDAC OLE DB provider for SQL | CVE-2023-36006 | Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-35622 | Windows DNS Spoofing Vulnerability | Important |
| Windows Cloud Files Mini Filter Driver | CVE-2023-36696 | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | Important |
| Windows Defender | CVE-2023-36010 | Microsoft Defender Denial of Service Vulnerability | Important |
| Windows DHCP Server | CVE-2023-35643 | DHCP Server Service Information Disclosure Vulnerability | Important |
| Windows DHCP Server | CVE-2023-35638 | DHCP Server Denial of Service Vulnerability | Important |
| Windows DHCP Server | CVE-2023-36012 | DHCP Server Service Information Disclosure Vulnerability | Important |
| Windows DPAPI (Data Protection Application Programming Interface) | CVE-2023-36004 | Windows DPAPI (Data Protection Application Programming Interface) Spoofing Vulnerability | Important |
| Windows Internet Connection Sharing (ICS) | CVE-2023-35642 | Internet Connection Sharing (ICS) Denial of Service Vulnerability | Important |
| Windows Internet Connection Sharing (ICS) | CVE-2023-35630 | Internet Connection Sharing (ICS) Remote Code Execution Vulnerability | Critical |
| Windows Internet Connection Sharing (ICS) | CVE-2023-35632 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability | Important |
| Windows Internet Connection Sharing (ICS) | CVE-2023-35641 | Internet Connection Sharing (ICS) Remote Code Execution Vulnerability | Critical |
| Windows Kernel | CVE-2023-35633 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-35635 | Windows Kernel Denial of Service Vulnerability | Important |
| Windows Kernel-Mode Drivers | CVE-2023-35644 | Windows Sysmain Service Elevation of Privilege | Important |
| Windows Local Security Authority Subsystem Service (LSASS) | CVE-2023-36391 | Local Security Authority Subsystem Service Elevation of Privilege Vulnerability | Important |
| Windows Media | CVE-2023-21740 | Windows Media Remote Code Execution Vulnerability | Important |
| Windows MSHTML Platform | CVE-2023-35628 | Windows MSHTML Platform Remote Code Execution Vulnerability | Critical |
| Windows ODBC Driver | CVE-2023-35639 | Microsoft ODBC Driver Remote Code Execution Vulnerability | Important |
| Windows Telephony Server | CVE-2023-36005 | Windows Telephony Server Elevation of Privilege Vulnerability | Important |
| Windows USB Mass Storage Class Driver | CVE-2023-35629 | Microsoft USBHUB 3.0 Device Driver Remote Code Execution Vulnerability | Important |
| Windows Win32K | CVE-2023-36011 | Win32k Elevation of Privilege Vulnerability | Important |
| Windows Win32K | CVE-2023-35631 | Win32k Elevation of Privilege Vulnerability | Important |
| XAML Diagnostics | CVE-2023-36003 | XAML Diagnostics Elevation of Privilege Vulnerability | Important |
Microsoft Patch Tuesday is a practice followed by Microsoft, where on the second Tuesday of each month, it releases updates and fixes for its operating systems , programs, and applications. These updates typically include security fixes, performance improvements, and new features.
The purpose of Microsoft Patch Tuesday is to provide Microsoft users with the best possible user experience by fixing issues and ensuring the security of their systems. Microsoft Patch Tuesday is important for several reasons. First, security updates help protect systems from security vulnerabilities and malware . These updates fix known security issues and strengthen the resilience of systems against attacks.
Source: www.bleepingcomputer.com
