Family Technology Blog

Microsoft has issued four critical and eight important updates that address several vulnerabilities in Windows and Office.

The 4 critical updates are:

• MS10-006: Vulnerabilities in SMB Client Could Allow Remote Code Execution (978251)

  This security update resolves two vulnerabilities in Microsoft Windows that could allow remote code execution if an attacker sent a specially crafted SMB response to a client-initiated SMB request. To exploit these vulnerabilities, an attacker must convince the user to initiate an SMB connection to a malicious SMB server.

• MS10-007: Vulnerability in Windows Shell Handler Could Allow Remote Code Execution (975713)

  This security update resolves a privately reported vulnerability in Microsoft Windows 2000, Windows XP, and Windows Server 2003. Other versions of Windows are not impacted by this security update. The vulnerability could allow remote code execution if an application, such as a Web browser, passes specially crafted data to the ShellExecute API function through the Windows Shell Handler.

• MS10-008: Cumulative Security Update of ActiveX Kill Bits (978262)

  This security update is rated Critical for all supported editions of Microsoft Windows 2000 and Windows XP, Important for all supported editions of Windows Vista and Windows 7, Moderate for all supported editions of Windows Server 2003, and Low for all supported editions of Windows Server 2008 and Windows Server 2008 R2.

  The vulnerability could allow remote code execution if a user views a specially crafted Web page that instantiates an ActiveX control with 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. This update also includes kill bits for four third-party ActiveX controls.

• MS10-013: Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution (977935)

  This security update resolves a vulnerability in Microsoft DirectShow which could allow remote code execution if a user opened a specially crafted AVI 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.

The 8 important updates are:

• MS10-009: Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution (974145)

  This security update resolves four vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow remote code execution if specially crafted packets are sent to a computer with IPv6 enabled. An attacker could try to exploit the vulnerability by creating specially crafted ICMPv6 packets and sending the packets to a system with IPv6 enabled. This vulnerability may only be exploited if the attacker is on-link.

• MS10-003: Vulnerability in Microsoft Office (MSO) Could Allow Remote Code Execution (978214)

  This security update resolves a vulnerability in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office 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.

• MS10-004: Vulnerabilities in Microsoft Office PowerPoint Could Allow Remote Code Execution (975416)

  This security update resolves six vulnerabilities in Microsoft Office PowerPoint which could allow remote code execution if a user opens a specially crafted PowerPoint file. 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.

• MS10-010: Vulnerability in Windows Server 2008 Hyper-V Could Allow Denial of Service (977894)

  This security update resolves a vulnerability in Windows Server 2008 Hyper-V and Windows Server 2008 R2 Hyper-V which could allow denial of service if a malformed sequence of machine instructions is run 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 log on locally into a guest virtual machine to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.

• MS10-011: Vulnerability in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (978037)

  This security update resolves vulnerability in Microsoft Windows Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows 2000, Windows XP, and Windows Server 2003. Other versions of Windows are not affected. The vulnerability could allow elevation of privilege if an attacker logs on to the system and starts a specially crafted application designed to continue running after the attacker logs out. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited by anonymous users.

• MS10-012: Vulnerabilities in SMB Server Could Allow Remote Code Execution (971468)

  This security update resolves several privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow remote code execution 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 these vulnerabilities.

• MS10-014: Vulnerability in Kerberos Could Allow Denial of Service (977290)

  This security update resolves a vulnerability in Microsoft Windows which could allow a denial of service if a specially crafted ticket renewal request is sent to the Windows Kerberos domain from an authenticated user on a trusted non-Windows Kerberos realm. The denial of service could persist until the domain controller is restarted.

• MS10-015: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (977165)

  This security update resolves one publicly disclosed and one privately reported vulnerability in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logged on to the system and then ran a specially crafted application. To exploit either vulnerability, an attacker must have valid logon credentials and be able to log on locally. The vulnerabilities could not be exploited remotely or by anonymous users.

For more details please visit:
Microsoft Security Bulletin Summary for February 2010

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