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Microsoft released 6 new security updates today, as part of their routine monthly security update cycle. As indicated below, four (4) are identified as critical. One (1) is Important and one (1) is Moderate.
The bulletins address 19 vulnerabilities in Microsoft Windows Shell, Windows Kernel, Internet Explorer, Internet Information Services (IIS), .NET Framework, and Excel.
Microsoft also released an updated version of the Microsoft Windows Malicious Software Removal Tool on Windows Update, Microsoft Update, Windows Server Update Services, and the Download Center.
• MS12-071 - Cumulative Security Update for Internet Explorer (2761451) • MS12-072 - Vulnerabilities in Windows Shell Could Allow Remote Code Execution (2727528) • MS12-074 - Vulnerabilities in .NET Framework Could Allow Remote Code Execution (2745030) • MS12-075 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2761226)
• MS12-076 - Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2720184)
• MS12-073 - Vulnerabilities in Microsoft Internet Information Services (IIS) Could Allow Information Disclosure (2733829)
From Dustin Childs @ the Microsoft Security Response Center (MSRC) Blog:
For those who need to prioritize deployment, we recommend focusing on these two Critical updates first:
MS12-071 (Internet Explorer): This bulletin addresses three privately disclosed issues, none of which are currently known to be under active attack. Successful exploitation of these issues could result in code execution with the current user's privileges. As such, we recommend the best practice of running applications with the least privileges possible in order to help mitigate potential risks. These issues do not affect Internet Explorer 10.
MS12-075 (Windows Kernel): This security update addresses three privately reported issues, none of which are currently known to be under active attack. This bulletin affects all supported versions of Microsoft Windows. The most severe issue could result in remote code execution if an attacker is able to lure a user to a website with a maliciously crafted TrueType font file embedded.
Security Update Re-release
In October we released Security Advisory 2749655 that addresses potential compatibility issues due to signature timestamps expiring before they should and noted we would be providing updates as they become available. Today we are providing one such update for MS12-046 (Visual Basic), which is now listed as available in the advisory. We have also released MS12-062 (System Center Configuration Manager 2007) to address an issue in the localization of resource files. Users who have already successfully installed the English versions of this update do not need to take any action.