Archive for the ‘TechNet’ Category

MS11-038 – Critical : Vulnerability in OLE Automation Could Allow Remote Code Execution (2476490) – Version: 1.0

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Severity Rating: Critical
Revision Note: V1.0 (June 14, 2011): Bulletin published.
Summary: This security update resolves a privately reported vulnerability in Microsoft Windows Object Linking and Embedding (OLE) Automation. The vulnerability could allow remote code execution if a user visits a Web site containing a specially crafted Windows Metafile (WMF) image. In all cases, however, an attacker would have no way to force users to visit such a Web site. Instead, an attacker would have to convince users to visit a malicious Web site, typically by getting them to click a link in an e-mail message or Instant Messenger request.

MS11-042 – Critical : Vulnerabilities in Distributed File System Could Allow Remote Code Execution (2535512) – Version: 1.1

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Severity Rating: Critical
Revision Note: V1.1 (June 14, 2011): Moved Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 from the affected software table to the non-affected software table. This is an informational change only. There were no changes to the security update files or detection logic.
Summary: This security update resolves two privately reported vulnerabilities in the Microsoft Distributed File System (DFS). The more severe of these vulnerabilities could allow remote code execution when an attacker sends a specially crafted DFS response to a client-initiated DFS request. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed.

MS11-036 – Important : Vulnerabilities in Microsoft PowerPoint Could Allow Remote Code Execution (2545814) – Version: 1.2

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Severity Rating: Important
Revision Note: V1.2 (June 14, 2011): Announced that the updates for Microsoft Office for Mac, which were not available when the bulletin was originally published, are now available in bulletin MS11-045. Also, for both vulnerabilities addressed by this bulletin, corrected erroneous registry script entries in the workarounds for setting Office File Validation to disable the opening of files that fail validation.
Summary: This security update resolves two privately reported vulnerabilities in Microsoft PowerPoint. The vulnerabilities could allow remote code execution if a user opens a specially crafted PowerPoint file. An attacker who successfully exploited either of these vulnerabilities could gain the same user rights as the logged-on 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. Installing and configuring Office File Validation (OFV) to prevent the opening of suspicious files blocks the attack vectors for exploiting the vulnerabilities described in CVE-2011-1269 and CVE-2011-1270.

MS11-041 – Critical : Vulnerability in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2525694) – Version: 1.0

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Severity Rating: Critical
Revision Note: V1.0 (June 14, 2011): Bulletin published.
Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user visits a network share (or visits a web site that points to a network share) containing a specially crafted OpenType font (OTF). In all cases, however, an attacker would have no way to force a user to visit such a web site or network share. Instead, an attacker would have to convince a user to visit the web site or network share, typically by getting them to click a link in an e-mail message or Instant Messenger message.

MS11-047 – Important : Vulnerability in Hyper-V Could Allow Denial of Service (2525835) – Version: 1.0

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Severity Rating: Important
Revision Note: V1.0 (June 14, 2011): Bulletin published.
Summary: This security update resolves a privately reported vulnerability in Windows Server 2008 Hyper-V and Windows Server 2008 R2 Hyper-V. The vulnerability could allow denial of service if a specially crafted packet is sent to the VMBus by an authenticated user in one of the guest virtual machines hosted by the Hyper-V server. An attacker must have valid logon credentials and be able to send specially crafted content from a guest virtual machine to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.

MS11-048 – Important : Vulnerability in SMB Server Could Allow Denial of Service (2536275) – Version: 1.0

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Severity Rating: Important
Revision Note: V1.0 (June 14, 2011): Bulletin published.
Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an attacker created a specially crafted SMB packet and sent the packet to an affected system. Firewall best practices and standard default firewall configurations can help protect networks from attacks originating outside the enterprise perimeter that would attempt to exploit this vulnerability.

MS11-701 – Low: Test MNP bulletin #1 (test0701)

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Bulletin Severity Rating:None - Test MNP bulletin #1

MS11-703 – Important: Test MNP bulletin #3 (test0703)

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Bulletin Severity Rating:None - Test MNP bulletin #3

MS11-702 – Moderate: Test MNP bulletin #2 (test0702)

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Bulletin Severity Rating:None - Test MNP bulletin #2

MS11-018 – Critical : Cumulative Security Update for Internet Explorer (2497640) – Version: 2.0

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Severity Rating: Critical
Revision Note: V2.0 (May 16, 2011): Bulletin rereleased to reoffer the update for Internet Explorer 7 on supported editions of Windows XP and Windows Server 2003. This is a detection change only. There were no changes to the binaries. Only affected customers will be offered the update. Customers who have installed the update manually and customers running configurations not targeted by the change to detection logic do not need to take any action.
Summary: This security update resolves four privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Explorer. This security update is rated Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows clients; and Moderate for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows servers. Internet Explorer 9 is not affected by the vulnerabilities. The most severe vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. 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.