Microsoft’s January 2023 Patch Tuesday Addresses 98 CVEs

On January 10, Microsoft released its January 2023 Patch Tuesday release which patched 98 CVEs with 11 rated as critical and 87 rated as important.

Microsoft patched CVE-2023-21674, an elevation of privilege vulnerability in Windows Advanced Local Procedure Call (ALPC), a message passing utility in Windows operating systems. Microsoft says this vulnerability was exploited in the wild as a zero day. When exploited, an attacker can leverage the vulnerability to break out of the sandbox in Chromium and gain kernel-level execution privileges.

This month’s update includes patches for:

• .NET Core
• 3D Builder
• Azure Service Fabric Container
• Microsoft Bluetooth Driver
• Microsoft Exchange Server
• Microsoft Graphics Component
• Microsoft Local Security Authority Server (lsasrv)
• Microsoft Message Queuing
• Microsoft Office
• Microsoft Office SharePoint
• Microsoft Office Visio
• Microsoft WDAC OLE DB provider for SQL
• Visual Studio Code
• Windows ALPC
• Windows Ancillary Function Driver for WinSock
• Windows Authentication Methods
• Windows Backup Engine
• Windows Bind Filter Driver
• Windows BitLocker
• Windows Boot Manager
• Windows Credential Manager
• Windows Cryptographic Services
• Windows DWM Core Library
• Windows Error Reporting
• Windows Event Tracing
• Windows IKE Extension
• Windows Installer
• Windows Internet Key Exchange (IKE) Protocol
• Windows iSCSI
• Windows Kernel
• Windows Layer 2 Tunneling Protocol
• Windows LDAP - Lightweight Directory Access Protocol
• Windows Local Security Authority (LSA)
• Windows Local Session Manager (LSM)
• Windows Malicious Software Removal Tool
• Windows Management Instrumentation
• Windows MSCryptDImportKey
• Windows NTLM
• Windows ODBC Driver
• Windows Overlay Filter
• Windows Point-to-Point Tunneling Protocol
• Windows Print Spooler Components
• Windows Remote Access Service L2TP Driver
• Windows RPC API
• Windows Secure Socket Tunneling Protocol (SSTP)
• Windows Smart Card
• Windows Task Scheduler
• Windows Virtual Registry Provider
• Windows Workstation Service

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