Microsoft Windows Embedded OpenType Font Engine numeric error

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been rated as critical. This issue affects some unknown processing of the component Embedded OpenType Font Engine. This manipulation causes numeric error. This vulnerability is tracked as CVE-2009-0232. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows (Operating System) (version unknown). Affected by this vulnerability is an unknown function of the component Embedded OpenType Font Engine. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the Embedded OpenType (EOT) Font Engine in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via a crafted name table, aka "Embedded OpenType Font Integer Overflow Vulnerability."

The weakness was disclosed 07/14/2009 by Thomas Garnier with iDefense as MS09-029 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2009-0232 since 01/20/2009. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 39792 (MS09-029: Vulnerabilities in the Embedded OpenType Font Engine Could Allow Remote Code Execution (961371)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90511 (Microsoft Embedded OpenType Font Engine Remote Code Execution Vulnerabilities (MS09-029)).

Upgrading eliminates this vulnerability. Applying the patch MS09-029 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. 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 4062.

The vulnerability is also documented in the databases at X-Force (50760), Tenable (39792), SecurityFocus (BID 35187†), OSVDB (55843†) and Secunia (SA35773†). Additional details are provided at informationweek.com. The entry VDB-3998 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 39792
Nessus Name: MS09-029: Vulnerabilities in the Embedded OpenType Font Engine Could Allow Remote Code Execution (961371)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900689
OpenVAS Name: Microsoft Embedded OpenType Font Engine Remote Code Execution Vulnerabilities (961371))
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS09-029
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/20/2009 🔍
07/14/2009 +175 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
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07/14/2009 +0 days 🔍
07/15/2009 +0 days 🔍
07/15/2009 +0 days 🔍
07/20/2009 +5 days 🔍
05/17/2025 +5780 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS09-029
Researcher: Thomas Garnier
Organization: iDefense
Status: Confirmed

CVE: CVE-2009-0232 (🔍)
GCVE (CVE): GCVE-0-2009-0232
GCVE (VulDB): GCVE-100-3997

OVAL: 🔍

X-Force: 50760
SecurityFocus: 35187 - Microsoft Windows Embedded OpenType Font Engine Integer Overflow Vulnerability
Secunia: 35773 - Windows Embedded OpenType Font Engine Two Vulnerabilities, Highly Critical
OSVDB: 55843 - Microsoft Windows Embedded OpenType (EOT) Font Name Tables Parsing Overflow
SecurityTracker: 1022543 - Windows Embedded OpenType (EOT) Font Engine Buffer Overflow Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 22867 - [MS09-029] Microsoft Windows Integer Overflow Remote Code Execution and DoS Vulnerability via EOT, Critical
Vupen: ADV-2009-1887

Misc.: 🔍
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Entryinfo

Created: 07/20/2009 08:56
Updated: 05/17/2025 19:24
Changes: 07/20/2009 08:56 (90), 02/11/2017 10:39 (11), 03/17/2021 11:20 (3), 05/17/2025 19:24 (17)
Complete: 🔍
Cache ID: 216::103

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