US-CERT Technical Cyber Security Alert TA06-010A -- Microsoft Windows, Outlook, and Exchange Vulnerabilities


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National Cyber Alert System

Technical Cyber Security Alert TA06-010A


Microsoft Windows, Outlook, and Exchange Vulnerabilities

Original release date: January 10, 2006
Last revised: January 10, 2006
Source: US-CERT


Systems Affected

* Microsoft Windows
* Microsoft Outlook
* Microsoft Exchange

For more complete information, refer to the Microsoft Security
Bulletin Summary for January 2006.


Overview

Microsoft has released updates that address critical vulnerabilities
in Windows, Outlook, and Exchange. 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 Security Bulletins for January 2006 address vulnerabilities
in Microsoft Windows, Outlook, and Exchange. Further information is
available in the following US-CERT Vulnerability Notes:

VU#915930 - Microsoft embedded web font buffer overflow

A heap-based buffer overflow in the way Microsoft Windows processes
embedded web fonts may allow a remote, unauthenticated attacker to
execute arbitrary code on a vulnerable system.
(CVE-2006-0010)

VU#252146 - Microsoft Outlook and Microsoft Exchange TNEF decoding
vulnerability

Microsoft Outlook and Microsoft Exchange contain an unspecified
vulnerability in processing TNEF attachments. This may allow a remote,
unauthenticated attacker to execute arbitrary code on a system running
the vulnerable software.
(CVE-2006-0002)


II. Impact

Exploitation of these vulnerabilities may allow a remote,
unauthenticated attacker to execute arbitrary code with the privileges
of the user. If the user is logged on with administrative privileges,
the attacker could take complete control of an affected system. An
attacker may also be able to cause a denial of service.


III. Solution

Apply Updates

Microsoft has provided the updates for these vulnerabilities in the
Security Bulletins and on the Microsoft Update site.

Workarounds

Please see the US-CERT Vulnerability Notes in Appendix A for workarounds.


Appendix A. References

* Microsoft Security Bulletin Summary for January 2006 -
<http://www.microsoft.com/technet/security/bulletin/ms06-jan.mspx>

* US-CERT Vulnerability Note VU#915930 -
<http://www.kb.cert.org/vuls/id/915930>

* US-CERT Vulnerability Note VU#252146 -
<http://www.kb.cert.org/vuls/id/252146>

* CVE-2006-0002 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0002>

* CAN-2006-0010 -
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0010>

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

____________________________________________________________________

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

<http://www.us-cert.gov/cas/techalerts/TA06-010A.html>
____________________________________________________________________

Feedback can be directed to US-CERT Technical Staff. Please send
email to <cert@xxxxxxxx> with "TA06-010A Feedback VU#915930" in the
subject.
____________________________________________________________________

For instructions on subscribing to or unsubscribing from this
mailing list, visit <http://www.us-cert.gov/cas/signup.html>.
____________________________________________________________________

Produced 2006 by US-CERT, a government organization.

Terms of use:

<http://www.us-cert.gov/legal.html>
____________________________________________________________________



Revision History

January 10, 2006: Initial release


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Relevant Pages

  • SecurityFocus Microsoft Newsletter #305
    ... Microsoft Office security, part one ... Microsoft Internet Explorer Multiple COM Object Color Property Denial of Service Vulnerabilities ... An attacker may leverage these issues to execute arbitrary server-side script code on an affected computer with the privileges of the webserver process. ...
    (Focus-Microsoft)
  • US-CERT Technical Cyber Security Alert TA06-010A -- Microsoft Windows, Outlook, and
    ... Microsoft Windows, Outlook, and Exchange Vulnerabilities ... VU#252146 - Microsoft Outlook and Microsoft Exchange TNEF decoding ...
    (comp.security.announce)
  • SecurityFocus Microsoft Newsletter #306
    ... Microsoft Office security, part two ... Microsoft Internet Explorer COM Object Instantiation Daxctle.OCX Heap Buffer Overflow vulnerability. ... Cybozu Garoon Multiple SQL Injection Vulnerabilities ...
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  • Re: [Full-disclosure] Microsofts Real Test with Vista is Vulnerabilities
    ... So if they can earn more from the subscription based security solution where is the incentive to make the OS more secure? ... I am far from a Microsoft marketing expert... ... Microsoft's Real Test with Vista is Vulnerabilities ...
    (Full-Disclosure)
  • SecurityFocus Microsoft Newsletter #360
    ... A Method of Testing VoIP security or Voice VLANs ... MICROSOFT VULNERABILITY SUMMARY ... Online Armor Personal Firewall SSDT Hooks Multiple Local Vulnerabilities ...
    (Focus-Microsoft)