Microsoft Windows input validation

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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows. It has been rated as problematic. Affected is an unknown function. The manipulation leads to input validation. This vulnerability is listed as CVE-2011-2002. The attack must be carried out locally. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (version unknown). It has been rated as problematic. This issue affects an unknown function. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

win32k.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle TrueType fonts, which allows local users to cause a denial of service (system hang) via a crafted font file, aka "Win32k TrueType Font Type Translation Vulnerability."

The weakness was presented 10/11/2011 as MS11-077 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The identification of this vulnerability is CVE-2011-2002. Attacking locally is a requirement. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56451 (MS11-077: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2567053)), 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 90746 (Microsoft Windows Kernel-Mode Drivers Remote Code Execution Vulnerability (MS11-077)).

Applying the patch MS11-077 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com.

The vulnerability is also documented in the databases at X-Force (70115), Tenable (56451), SecurityFocus (BID 49973†), SecurityTracker (ID 1026165†) and Vulnerability Center (SBV-33533†). See VDB-4422, VDB-59007 and VDB-59004 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56451
Nessus Name: MS11-077: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2567053)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902483
OpenVAS Name: Windows Kernel-Mode Drivers Remote Code Execution Vulnerabilities (2567053)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-077

Timelineinfo

05/09/2011 🔍
10/11/2011 +155 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
03/23/2015 +1258 days 🔍
02/22/2025 +3624 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-077
Status: Confirmed

CVE: CVE-2011-2002 (🔍)
GCVE (CVE): GCVE-0-2011-2002
GCVE (VulDB): GCVE-100-59003

OVAL: 🔍

X-Force: 70115
SecurityFocus: 49973 - Microsoft Windows Kernel 'Win32k.sys' TrueType Font File Remote Denial of Service Vulnerability
SecurityTracker: 1026165
Vulnerability Center: 33533 - [MS11-077] Microsoft Windows \x27Win32k.sys\x27 Remote DoS via a TrueType Font File, High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 02/22/2025 20:43
Changes: 03/23/2015 16:50 (64), 04/07/2017 16:04 (8), 11/23/2021 16:45 (3), 11/23/2021 16:53 (2), 02/22/2025 20:43 (21)
Complete: 🔍
Cache ID: 216::103

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