Microsoft Windows 7/Server 2008/Vista DirectWrite Unicode Character Parser input validation

CVSS Meta Temp Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Microsoft Windows 7/Server 2008/Vista. Impacted is an unknown function of the component DirectWrite Unicode Character Parser. This manipulation causes input validation. This vulnerability is handled as CVE-2012-0156. It is possible to launch the attack on the local host. Additionally, an exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows 7/Server 2008/Vista (Operating System) and classified as problematic. Affected by this vulnerability is some unknown processing of the component DirectWrite Unicode Character Parser. 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 availability. The summary by CVE is:

DirectWrite in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly render Unicode characters, which allows remote attackers to cause a denial of service (application hang) via a (1) instant message or (2) web site, aka "DirectWrite Application Denial of Service Vulnerability."

The weakness was released 03/13/2012 by Khaled M. Salameh as MS12-019 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is known as CVE-2012-0156 since 12/13/2011. An attack has to be approached locally. Required for exploitation is a single authentication. Technical details are unknown but a private exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 58331 (MS12-019: Vulnerability in DirectWrite Could Allow Denial of Service (2665364)), 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 90786 (Microsoft Windows DirectWrite Could Allow Denial of Service Vulnerability (MS12-019)).

Applying the patch MS12-019 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (73539), Tenable (58331), SecurityFocus (BID 52332†), OSVDB (80003†) and Secunia (SA48361†). Entries connected to this vulnerability are available at VDB-4800, VDB-4803, VDB-4802 and VDB-4798. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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  • end of life (old version)

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CPE 2.3info

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58331
Nessus Name: MS12-019: Vulnerability in DirectWrite Could Allow Denial of Service (2665364)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902908
OpenVAS Name: Microsoft Windows DirectWrite Denial of Service Vulnerability (2665364)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
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Patch: MS12-019

Timelineinfo

12/13/2011 🔍
03/13/2012 +90 days 🔍
03/13/2012 +0 days 🔍
03/13/2012 +0 days 🔍
03/13/2012 +0 days 🔍
03/13/2012 +0 days 🔍
03/13/2012 +0 days 🔍
03/14/2012 +1 days 🔍
03/14/2012 +0 days 🔍
03/15/2012 +1 days 🔍
01/05/2025 +4679 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS12-019
Researcher: Khaled M. Salameh
Status: Confirmed

CVE: CVE-2012-0156 (🔍)
GCVE (CVE): GCVE-0-2012-0156
GCVE (VulDB): GCVE-100-4801

OVAL: 🔍

X-Force: 73539
SecurityFocus: 52332
Secunia: 48361 - Microsoft Windows DirectWrite Unicode Parsing Denial of Service, Less Critical
OSVDB: 80003
Vulnerability Center: 34633 - [MS12-019] Microsoft DirectWrite Unicode Handling Flaw Allows Remote DoS via Instant Message\\Website, Medium

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

Entryinfo

Created: 03/15/2012 09:41
Updated: 01/05/2025 12:14
Changes: 03/15/2012 09:41 (51), 04/07/2017 12:38 (25), 03/21/2021 16:59 (8), 03/21/2021 17:06 (2), 03/21/2021 17:12 (1), 01/05/2025 12:14 (16)
Complete: 🔍
Cache ID: 216::103

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

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