Microsoft Security Bulletin Summary Update for November 2009

Microsoft has released six security bulletins today as a part of their monthly Patch Tuesday program. These six security bulletins fixes a total of 15 different security vulnerabilities found in Microsoft Windows and Microsoft Office. Of the six bulletins, three rated critical and three important patches for vulnerabilities. These vulnerabilities can allow remote code execution and denial of service attacks.

All the users of these products in which vulnerabilities discovered are encouraged to update their computer systems as soon as possible to protect the PCs from possible exploits. Users can download the patches via all the normal update channels including Automatic Updates, Windows Updates, Microsoft Updates or they can download them manually by following the links posted in the security bulletins.

Bulletin ID

Bulletin Title and Executive Summary

MS09-063

Vulnerability in Web Services on Devices API Could Allow Remote Code Execution (973565)

This security update resolves a privately reported vulnerability in the Web Services on Devices Application Programming Interface (WSDAPI) on the Windows operating system. The vulnerability could allow remote code execution if an affected Windows system receives a specially crafted packet. Only attackers on the local subnet would be able to exploit this vulnerability.

MS09-064

Vulnerability in License Logging Server Could Allow Remote Code Execution (974783)

This security update resolves a privately reported vulnerability in Microsoft Windows 2000. The vulnerability could allow remote code execution if an attacker sent a specially crafted network message to a computer running the License Logging Server. An attacker who successfully exploited this vulnerability could take complete control of the system. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter.

MS09-065

Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (969947)

This security update resolves several privately reported vulnerabilities in the Windows kernel. The most severe of the vulnerabilities could allow remote code execution if a user viewed content rendered in a specially crafted Embedded OpenType (EOT) font. In a Web-based attack scenario, an attacker would have to host a Web site that contains specially crafted embedded fonts that are used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince the user to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes the user to the attacker’s site.

MS09-066

Vulnerability in Active Directory Could Allow Denial of Service (973309)

This security update resolves a privately reported vulnerability in Active Directory directory service, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS). The vulnerability could allow denial of service if stack space was exhausted during execution of certain types of LDAP or LDAPS requests. This vulnerability only affects domain controllers and systems configured to run ADAM or AD LDS.

MS09-067

Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution (972652)

This security update resolves several privately reported vulnerabilities in Microsoft Office Excel. The vulnerabilities could allow remote code execution if a user opens a specially crafted Excel file. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. 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.

MS09-068

Vulnerability in Microsoft Office Word Could Allow Remote Code Execution (976307)

This security update resolves a privately reported vulnerability that could allow remote code execution if a user opens a specially crafted Word file. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

Interested users can find detailed information in the security bulletins linked above or at the Microsoft Security Bulletin Summary for November page here.

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