Microsoft Windows 7/Server 2003/Server 2008/Vista/XP OpenType Compact Font Format Driver input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Windows 7/Server 2003/Server 2008/Vista/XP. The impacted element is an unknown function of the component OpenType Compact Font Format Driver. This manipulation causes input validation. This vulnerability is tracked as CVE-2011-0033. The attack is only possible within the local network. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows 7/Server 2003/Server 2008/Vista/XP (Operating System) and classified as critical. Affected by this vulnerability is some unknown processing of the component OpenType Compact Font Format Driver. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

The OpenType Compact Font Format (CFF) driver in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate parameter values in OpenType fonts, which allows remote attackers to execute arbitrary code via a crafted font, aka "OpenType Font Encoded Character Vulnerability."

The weakness was disclosed 02/08/2011 with Microsoft as MS11-007 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2011-0033 since 12/10/2010. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 51907 (MS11-007: Vulnerability in the OpenType Compact Font Format (CFF) Driver Could Allow Remote Code Execution (2485376)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90685 (Microsoft OpenType Compact Font Format (CFF) Driver Remote Code Execution Vulnerability (MS11-007)).

Applying the patch MS11-007 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11955.

The vulnerability is also documented in the databases at X-Force (64907), Tenable (51907), SecurityFocus (BID 46106†), OSVDB (70821†) and Secunia (SA43252†). The entries VDB-4301, VDB-4298, VDB-4296 and VDB-4295 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Support

  • end of life (old version)

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 51907
Nessus Name: MS11-007: Vulnerability in the OpenType Compact Font Format (CFF) Driver Could Allow Remote Code Execution (2485376)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902335
OpenVAS Name: Vulnerability in the OpenType Compact Font Format (CFF) Driver Could Allow Remote Code Execution (2485376)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-007
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/10/2010 🔍
02/08/2011 +60 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/08/2011 +0 days 🔍
02/09/2011 +1 days 🔍
02/09/2011 +0 days 🔍
02/10/2011 +0 days 🔍
02/16/2011 +6 days 🔍
01/26/2025 +5093 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-007
Researcher: http://www.microsoft.com
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0033 (🔍)
GCVE (CVE): GCVE-0-2011-0033
GCVE (VulDB): GCVE-100-4297

OVAL: 🔍

X-Force: 64907
SecurityFocus: 46106 - Microsoft Windows OpenType Compact Font Format Remote Code Execution Vulnerability
Secunia: 43252 - Microsoft Windows OpenType Compact Font Format Driver Vulnerability, Highly Critical
OSVDB: 70821 - Microsoft OpenType Compact Font Format (CFF) Parsing Remote Code Execution
SecurityTracker: 1025034
Vulnerability Center: 29644 - [MS11-007] Microsoft Windows XP and Windows Server 2003 OpenType CFF Local Code Execution, High

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 02/16/2011 14:09
Updated: 01/26/2025 06:16
Changes: 02/16/2011 14:09 (85), 08/19/2018 19:50 (12), 03/18/2021 20:01 (2), 03/18/2021 20:07 (1), 01/19/2025 23:21 (16), 01/26/2025 06:16 (1)
Complete: 🔍
Cache ID: 216:675:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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