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                        National Cyber Alert System

                 Technical Cyber Security Alert TA07-226A


Microsoft Updates for Multiple Vulnerabilities

   Original release date: August 14, 2007
   Last revised: --
   Source: US-CERT


Systems Affected

    * Microsoft Windows
    * Microsoft Internet Explorer
    * Microsoft Windows Media Player
    * Microsoft Office
    * Microsoft Office for Mac
    * Microsoft XML Core Services
    * Microsoft Visual Basic
    * Microsoft Virtual PC
    * Microsoft Virtual Server


Overview

   Microsoft has released updates that address critical vulnerabilities
   in Microsoft Windows, Internet Explorer, Windows Media Player, Office,
   Office for Mac, XML Core Services, Visual Basic, Virtual PC, and
   Virtual Server. Exploitation of these vulnerabilities could allow a
   remote, unauthenticated attacker to execute arbitrary code or cause a
   denial of service on a vulnerable system.


I. Description

   Microsoft has released updates to address vulnerabilities that affect
   Microsoft Windows, Internet Explorer, Windows Media Player, Office,
   Office for Mac, XML Core Services, Visual Basic,Virtual PC, and
   Virtual Server as part of the Microsoft Security Bulletin Summary for
   August 2007. The most severe vulnerabilities could allow a remote,
   unauthenticated attacker to execute arbitrary code or cause a denial
   of service on a vulnerable system.

   Further information about the vulnerabilities addressed by these
   updates is available in the Vulnerability Notes Database


II. Impact

   A remote, unauthenticated attacker could execute arbitrary code on a
   vulnerable system. An attacker may also be able to cause a denial of
   service.


III. Solution

Apply updates from Microsoft

   Microsoft has provided updates for these vulnerabilities in the August
   2007 Security Bulletins. The Security Bulletins describe any known
   issues related to the updates. Administrators are encouraged to note
   any known issues that are described in the Bulletins and test for any
   potentially adverse effects.

   Updates for Microsoft Windows and Microsoft Office XP and later are
   available on the Microsoft Update site. Microsoft Office 2000 updates
   are available on the Microsoft Office Update site. Apple Mac OS X
   users should obtain updates from the Mactopia web site.

   System administrators may wish to consider using an automated patch
   distribution system such as Windows Server Update Services (WSUS).


IV. References

    * US-CERT Vulnerability Notes for Microsoft August 2007 updates -
      <http://www.kb.cert.org/vuls/byid?searchview&query=ms07-aug>

    * Securing Your Web Browser -
      <http://www.us-cert.gov/reading_room/securing_browser/>

    * Microsoft Security Bulletin Summary for August 2007 -
      <http://www.microsoft.com/technet/security/bulletin/ms07-aug.mspx>

    * Microsoft Update - <https://update.microsoft.com/microsoftupdate/>

    * Microsoft Office Update - <http://officeupdate.microsoft.com/>

    * Windows Server Update Services -
      <http://www.microsoft.com/windowsserversystem/updateservices/default.mspx>

    * Mactopia - <http://www.microsoft.com/mac/>

 ____________________________________________________________________

   The most recent version of this document can be found at:

     <http://www.us-cert.gov/cas/alerts/TA07-226A.html>
 ____________________________________________________________________

   Feedback can be directed to US-CERT Technical Staff. Please send
   email to <cert@cert.org> with "TA07-226A Feedback VU#361968" in the
   subject.
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   Produced 2007 by US-CERT, a government organization.

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Revision History

   August 14, 2007: Initial release
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