Microsoft Windows null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft Windows. Affected by this issue is some unknown functionality. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2011-1232. The attack requires a local approach. No exploit exists. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) (the affected version unknown). It has been classified as critical. Affected is an unknown part. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, a different vulnerability than other "Vulnerability Type 2" CVEs listed in MS11-034, aka "Win32k Null Pointer De-reference Vulnerability."

The weakness was disclosed 04/12/2011 by Tarjei Mandt with Norman (Website). The advisory is available at us-cert.gov. This vulnerability is traded as CVE-2011-1232. The exploitability is told to be easy. Local access is required to approach this attack. A authentication is necessary for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/18/2025).

The vulnerability scanner Nessus provides a plugin with the ID 53391 (MS11-034: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2506223)), 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 90701 (Microsoft Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability (MS11-034)).

A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (66414), Tenable (53391), SecurityFocus (BID 47232†), OSVDB (71738†) and Vulnerability Center (SBV-31066†). The entries VDB-4336, VDB-54584, VDB-56176 and VDB-56475 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 53391
Nessus Name: MS11-034: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2506223)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900283
OpenVAS Name: Windows Kernel-Mode Drivers Privilege Elevation Vulnerabilities (2506223)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/04/2011 🔍
04/12/2011 +39 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 days 🔍
04/12/2011 +0 days 🔍
04/13/2011 +0 days 🔍
04/13/2011 +0 days 🔍
03/23/2015 +1440 days 🔍
01/18/2025 +3589 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: us-cert.gov
Researcher: Tarjei Mandt
Organization: Norman
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1232 (🔍)
GCVE (CVE): GCVE-0-2011-1232
GCVE (VulDB): GCVE-100-57102

OVAL: 🔍

X-Force: 66414
SecurityFocus: 47232 - Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1232) Local Privilege Escalation Vulnerability
Secunia: 44156
OSVDB: 71738 - Microsoft Windows win32k.sys Driver Null Pointer De-reference Unspecified Local Privilege Escalation (2011-1232)
Vulnerability Center: 31066 - [MS11-034] Microsoft Windows Win32k Null Pointer Dereference Privilege Escalation (CVE-2011-1232), High

See also: 🔍

Entryinfo

Created: 03/23/2015 04:50 PM
Updated: 01/18/2025 07:39 PM
Changes: 03/23/2015 04:50 PM (61), 04/07/2017 04:04 PM (10), 11/02/2021 02:20 PM (5), 11/02/2021 02:22 PM (1), 01/18/2025 07:39 PM (16)
Complete: 🔍
Cache ID: 244:EAE:40

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