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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgende Warnung des Microsoft Product Security
Notification Service. Wir geben diese Informationen unveraendert an Sie
weiter.

CVE-2011-0033 – Schwachstelle im OpenType Compact Font Format (CFF)
Treiber

Der Windows OpenType Compact Font Format (CFF) Treiber verarbeitet
OpenType Zeichensaetze in unsicherer Weise. Ein entfernter Angreifer
kann diese Schwachstelle durch eine manipulierte Schriftdatei ausnutzen,
um beliebige Befehle im Kernel-Mode auszufuehren und das System so
vollstaendig zu kontrollieren.

Betroffen sind die folgenden Software Pakete und Plattformen:

OpenType Compact Font Format (CFF) Treiber

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 mit SP2 fuer Itanium-basierte Systeme
Windows Vista Service Pack 1 und Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 1 und Windows Vista x64 Edition
Service Pack 2
Windows Server 2008 fuer 32-bit Systems und Windows Server 2008 fuer
32-bit Systems Service Pack 2*
Windows Server 2008 fuer x64-basierte Systeme und Windows Server 2008
fuer x64-basierte Systeme Service Pack 2*
Windows Server 2008 fuer Itanium-basierte Systeme und Windows Server
2008 fuer Itanium-basierte Systeme Service Pack 2
Windows 7 fuer 32-bit Systeme
Windows 7 fuer x64-basierte Systeme
Windows Server 2008 R2 fuer x64-basierte Systeme*
Windows Server 2008 R2 fuer Itanium-basierte Systeme
*Die Server Core Installation ist betroffen.

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

Weiterhin existieren Workarounds:

Der Hersteller beschreibt weiterhin Workarounds deren Details dem
Hersteller-Advisory entnommen werden koennen

(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
Detlev O. Matthies

– —

Detlev O. Matthies, M.Sc. (Incident Response Team)

DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-590
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

Automatische Warnmeldungen https://www.cert.dfn.de/autowarn

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===========================================================================
AUSCERT External Security Bulletin Redistribution

ESB-2011.0130
Vulnerability in the OpenType Compact Font Format (CFF)
Driver Could Allow Remote Code Execution (2485376)
9 February 2011

===========================================================================

AusCERT Security Bulletin Summary
———————————

Product: Microsoft Windows
Publisher: Microsoft
Operating System: Windows XP
Windows Server 2003
Windows Vista
Windows Server 2008
Windows 7
Impact/Access: Execute Arbitrary Code/Commands — Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2011-0033

Original Bulletin:
http://www.microsoft.com/technet/security/bulletin/MS11-007.mspx

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Microsoft Security Bulletin MS11-007 – Critical

Vulnerability in the OpenType Compact Font Format (CFF) Driver Could Allow
Remote Code Execution (2485376)

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in the Windows
OpenType Compact Font Format (CFF) driver. The vulnerability could allow remote
code execution if a user views content rendered in a specially crafted CFF
font. In all cases, an attacker would have no way to force users to view the
specially crafted content. Instead, an attacker would have to convince users
to visit a Web site, typically by getting them to click a link in an e-mail
message or Instant Messenger message that takes users to the attacker’s Web
site.

This security update is rated Critical for all supported editions of Windows
Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. This
security update is also rated Important for all supported editions of Windows
XP and Windows Server 2003. For more information, see the subsection, Affected
and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the manner in
which the Windows OpenType Compact Font Format (CFF) driver validates the
parameter values of specially crafted OpenType fonts. For more information
about the vulnerability, see the Frequently Asked Questions (FAQ) subsection
for the specific vulnerability entry under the next section, Vulnerability
Information.

Affected Software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 1 and Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service
Pack 2
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit
Systems Service Pack 2*
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based
Systems Service Pack 2*
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for
Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems*
Windows Server 2008 R2 for Itanium-based Systems

Vulnerability Information

OpenType Font Encoded Character Vulnerability – CVE-2011-0033

A remote code execution vulnerability exists in the way that the Windows
OpenType Compact Font Format (CFF) driver improperly parses specially crafted
OpenType fonts. An attacker who successfully exploited this vulnerability
could run arbitrary code in kernel mode. An attacker could then install
programs; view, change, or delete data; or create new accounts with full user
rights.

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You have received this e-mail bulletin as a result of your organisation’s
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation’s
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author’s website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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