Tuesday, August 14, 2007 1:21 PM cmosby

Microsoft Security Bulletin Summary for August 2007

Bulletin Information

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Executive Summaries

The security bulletins for this month are as follows, in order of severity:

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Critical (6)

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Bulletin Identifier Microsoft Security Bulletin MS07-042

Bulletin Title

Vulnerability in Microsoft XML Core Services Could Allow Remote Code Execution (936227)

Executive Summary

This critical security update resolves a privately reported vulnerability. This vulnerability could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer. The vulnerability could be exploited through attacks on Microsoft XML Core Services. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will require a restart.

Affected Software

Windows, XML Core Services. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-043

Bulletin Title

Vulnerability in OLE Automation Could Allow Remote Code Execution (921503)

Executive Summary

This critical security update resolves a privately reported vulnerability. This vulnerability could allow remote code execution if a user viewed a specially crafted Web page. The vulnerability could be exploited through attacks on Object Linking and Embedding (OLE). Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. This update will require a restart.

Affected Software

Windows, Visual Basic, Office for Mac. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-044

Bulletin Title

Vulnerability in Microsoft Excel Could Allow Remote Code Execution (940965)

Executive Summary

This security update resolves a privately reported vulnerability in addition to other security issues identified during the course of the investigation. These vulnerabilities could allow remote code execution if a user opens a specially crafted Excel file. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will not require a restart.

Affected Software

Office. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-045

Bulletin Title

Cumulative Security Update for Internet Explorer (937143)

Executive Summary

This critical security update resolves three privately reported vulnerabilities. These vulnerabilities could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will require a restart.

Affected Software

Windows, Internet Explorer. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-046

Bulletin Title

Vulnerability in GDI Could Allow Remote Code Execution (938829)

Executive Summary

This critical security update resolves a privately reported vulnerability. A remote code execution vulnerability exists in the Graphics Rendering Engine in the way that it handles specially crafted images. An attacker could exploit the vulnerability by constructing a specially crafted image that could potentially allow remote code execution if a user opened a specially crafted attachment in e-mail. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will require a restart.

Affected Software

Windows. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-050

Bulletin Title

Vulnerability in Vector Markup Language Could Allow Remote Code Execution (938127)

Executive Summary

This security update resolves a privately reported vulnerability in the Vector Markup Language (VML) implementation in Windows. The vulnerability could allow remote code execution if a user viewed a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Critical

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will require a restart.

Affected Software

Windows, Internet Explorer. For more information, see the Affected Software and Download Locations section.

 

 

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Important (3)

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Bulletin Identifier Microsoft Security Bulletin MS07-047

Bulletin Title

Vulnerability in Windows Media Player Could Allow Remote Code Execution (936782)

Executive Summary

This important security update resolves two privately reported vulnerabilities. These vulnerabilities could allow code execution if a user viewed a specially crafted file in Windows Media Player. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Important

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will not require a restart.

Affected Software

Windows. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-048

Bulletin Title

Vulnerabilities in Windows Gadgets Could Allow Remote Code Execution (938123)

Executive Summary

This important security update resolves two privately reported vulnerabilities in addition to other vulnerabilities identified during the course of the investigation. These vulnerabilities could allow an anonymous remote attacker to run code with the privileges of the logged on user. If a user subscribed to a malicious RSS feed in the Feed Headlines Gadget or added a malicious contacts file in the Contacts Gadget or a user clicked on a malicious link in the Weather Gadget an attacker could potentially run code on the system. In all attack vectors, users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Maximum Severity Rating

Important

Impact of Vulnerability

Remote Code Execution

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update will require a restart.

Affected Software

Windows Vista. For more information, see the Affected Software and Download Locations section.

 

Bulletin Identifier Microsoft Security Bulletin MS07-049

Bulletin Title

Vulnerability in Virtual PC and Virtual Server Could Allow Elevation of Privilege (937986)

Executive Summary

This important security update resolves one privately reported vulnerability. This is an elevation of privilege vulnerability. The vulnerability in Microsoft Virtual PC and Microsoft Virtual Server could allow a guest operating system user to run code on the host or another guest operating systems. Only guest operating system users who are granted administrative permissions to the guest operating system would be able to exploit this vulnerability. Guest operating system users not granted administrative permissions to the guest operating system would be unable to exploit this vulnerability.

Maximum Severity Rating

Important

Impact of Vulnerability

Elevation of Privilege

Detection

Microsoft Baseline Security Analyzer can detect whether your computer system requires this update. The update does not require a restart.

Affected Software

Virtual PC, Virtual Server. For more information, see the Affected Software and Download Locations section.

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