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National Cyber Alert System
Technical Cyber Security Alert TA07-009A
Microsoft Updates for Multiple Vulnerabilities
Original release date: January 9, 2007
Last revised: --
Source: US-CERT
Systems Affected
* Microsoft Windows
* Microsoft Internet Explorer
* Microsoft Outlook
* Microsoft Excel for Windows and Mac OS X
Overview
Microsoft has released updates that address critical vulnerabilities
in Microsoft Windows, Internet Explorer, Outlook, and Excel.
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, Outlook, and Excel as part of
the Microsoft Security Bulletin Summary for January 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.
Note that both Windows and Mac OS X versions of Excel are affected by
the vulnerabilities described in Microsoft Security Bulletin MS07-002.
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
January 2007 Security Bulletins. The Security Bulletins describe any
known issues related to the updates. Note any known issues described
in the Bulletins and test for any potentially adverse affects in your
environment.
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 January 2007 updates -
<http://www.kb.cert.org/vuls/byid?searchview&query=ms07-jan>
* Securing Your Web Browser -
<http://www.us-cert.gov/reading_room/securing_browser/>
* Microsoft Security Bulletin Summary for January 2007 -
<http://www.microsoft.com/technet/security/bulletin/ms07-jan.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>
____________________________________________________________________
The most recent version of this document can be found at:
<http://www.us-cert.gov/cas/techalerts/TA07-009A.html>
____________________________________________________________________
Feedback can be directed to US-CERT Technical Staff. Please send
email to <cert@xxxxxxxx> with "TA07-009A Feedback VU#749964" in the
subject.
____________________________________________________________________
For instructions on subscribing to or unsubscribing from this
mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
____________________________________________________________________
Produced 2007 by US-CERT, a government organization.
Terms of use:
<http://www.us-cert.gov/legal.html>
____________________________________________________________________
Revision History
January 09, 2007: Initial release
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