Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

BID:48591

Info

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

Bugtraq ID: 48591
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2011-1877
Remote: No
Local: Yes
Published: Jul 12 2011 12:00AM
Updated: Jul 13 2011 05:10PM
Credit: Tarjei Mandt of Norman
Vulnerable: Microsoft Windows Vista x64 Edition SP2
Microsoft Windows Vista x64 Edition SP1
Microsoft Windows Vista x64 Edition 0
Microsoft Windows Vista Ultimate 64-bit edition SP2
Microsoft Windows Vista Ultimate 64-bit edition SP1
Microsoft Windows Vista Ultimate 64-bit edition 0
Microsoft Windows Vista Home Premium 64-bit edition SP2
Microsoft Windows Vista Home Premium 64-bit edition SP1
Microsoft Windows Vista Home Premium 64-bit edition 0
Microsoft Windows Vista Home Basic 64-bit edition Sp2 X64
Microsoft Windows Vista Home Basic 64-bit edition SP2
Microsoft Windows Vista Home Basic 64-bit edition Sp1 X64
Microsoft Windows Vista Home Basic 64-bit edition SP1
Microsoft Windows Vista Home Basic 64-bit edition 0
Microsoft Windows Vista Enterprise 64-bit edition SP2
Microsoft Windows Vista Enterprise 64-bit edition SP1
Microsoft Windows Vista Enterprise 64-bit edition 0
Microsoft Windows Vista Business 64-bit edition SP2
Microsoft Windows Vista Business 64-bit edition SP1
Microsoft Windows Vista Business 64-bit edition 0
Microsoft Windows Vista Ultimate SP2
Microsoft Windows Vista Ultimate SP1
Microsoft Windows Vista Ultimate
Microsoft Windows Vista SP2 Beta
Microsoft Windows Vista SP2
Microsoft Windows Vista SP1
Microsoft Windows Vista Home Premium SP2
Microsoft Windows Vista Home Premium SP1
Microsoft Windows Vista Home Premium
Microsoft Windows Vista Home Basic SP2
Microsoft Windows Vista Home Basic SP1
Microsoft Windows Vista Home Basic
Microsoft Windows Vista Enterprise SP2
Microsoft Windows Vista Enterprise SP1
Microsoft Windows Vista Enterprise
Microsoft Windows Vista Business SP2
Microsoft Windows Vista Business SP1
Microsoft Windows Vista Business
Microsoft Windows Vista 0
Microsoft Windows Server 2008 Standard Edition X64
Microsoft Windows Server 2008 Standard Edition SP2
Microsoft Windows Server 2008 Standard Edition Release Candidate
Microsoft Windows Server 2008 Standard Edition Itanium
Microsoft Windows Server 2008 Standard Edition 0
Microsoft Windows Server 2008 R2 x64 SP1
Microsoft Windows Server 2008 R2 x64 0
Microsoft Windows Server 2008 R2 Itanium SP1
Microsoft Windows Server 2008 R2 Itanium 0
Microsoft Windows Server 2008 R2 Datacenter SP1
Microsoft Windows Server 2008 R2 Datacenter 0
Microsoft Windows Server 2008 for x64-based Systems SP2
Microsoft Windows Server 2008 for x64-based Systems R2
Microsoft Windows Server 2008 for x64-based Systems 0
Microsoft Windows Server 2008 for Itanium-based Systems SP2
Microsoft Windows Server 2008 for Itanium-based Systems R2
Microsoft Windows Server 2008 for Itanium-based Systems 0
Microsoft Windows Server 2008 for 32-bit Systems SP2
Microsoft Windows Server 2008 for 32-bit Systems 0
Microsoft Windows Server 2008 Enterprise Edition SP2
Microsoft Windows Server 2008 Enterprise Edition Release Candidate
Microsoft Windows Server 2008 Enterprise Edition 0
Microsoft Windows Server 2008 Datacenter Edition SP2
Microsoft Windows Server 2008 Datacenter Edition Release Candidate
Microsoft Windows Server 2008 Datacenter Edition 0
Microsoft Windows Server 2008 SP2 Beta
Microsoft Windows Server 2008 - Sp2 Enterprise X64
Microsoft Windows Server 2008 R2
Microsoft Windows 7 XP Mode 0
Microsoft Windows 7 Ultimate 0
Microsoft Windows 7 Starter 0
Microsoft Windows 7 Professional 0
Microsoft Windows 7 Home Premium 0
Microsoft Windows 7 for x64-based Systems SP1
Microsoft Windows 7 for x64-based Systems 0
Microsoft Windows 7 for Itanium-based Systems SP1
Microsoft Windows 7 for Itanium-based Systems 0
Microsoft Windows 7 for 32-bit Systems SP1
Microsoft Windows 7 for 32-bit Systems 0
Microsoft Windows 7 RC
Avaya Messaging Application Server 5.2
Avaya Messaging Application Server 5
Avaya Messaging Application Server 4
Avaya Meeting Exchange - Webportal 0
Avaya Meeting Exchange - Web Conferencing Server 0
Avaya Meeting Exchange - Streaming Server 0
Avaya Meeting Exchange - Recording Server 0
Avaya Meeting Exchange - Client Registration Server 0
Avaya Meeting Exchange 5.0 .0.52
Avaya Meeting Exchange 5.2 SP2
Avaya Meeting Exchange 5.2 SP1
Avaya Meeting Exchange 5.2
Avaya Meeting Exchange 5.1 SP1
Avaya Meeting Exchange 5.1
Avaya Meeting Exchange 5.0 SP2
Avaya Meeting Exchange 5.0 SP1
Avaya Meeting Exchange 5.0
Avaya Communication Server 1000 Telephony Manager 4.0
Avaya Communication Server 1000 Telephony Manager 3.0
Avaya CallPilot 5.0
Avaya CallPilot 4.0
Avaya Aura Conferencing 6.0 Standard
Not Vulnerable:

Discussion

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

Microsoft Windows is prone to a local privilege-escalation vulnerability that occurs in the Windows kernel due to a use-after-free error.

A local attacker can exploit this issue to execute arbitrary code with kernel-level privileges. Successful exploits will result in the complete compromise of affected computers. Failed exploit attempts may cause a denial-of-service condition.

Exploit / POC

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

Solution:
Vendor updates are available. Please see the referenced advisory for more information.


Microsoft Windows 7 for x64-based Systems SP1

Microsoft Windows Server 2008 R2 x64 SP1

Microsoft Windows Server 2008 for 32-bit Systems SP2

Microsoft Windows Server 2008 R2 x64 0

Microsoft Windows Vista Business SP2

Microsoft Windows Vista Home Premium SP2

Microsoft Windows Vista Enterprise SP2

Microsoft Windows Server 2008 for x64-based Systems R2

Microsoft Windows Server 2008 R2 Itanium 0

Microsoft Windows Vista Home Basic SP1

Microsoft Windows 7 for 32-bit Systems 0

Microsoft Windows Vista x64 Edition SP1

Microsoft Windows Vista Ultimate SP2

Microsoft Windows Vista Ultimate SP1

Microsoft Windows Vista Home Basic SP2

Microsoft Windows Vista SP1

Microsoft Windows Server 2008 for x64-based Systems 0

Microsoft Windows 7 for 32-bit Systems SP1

Microsoft Windows Vista Business SP1

Microsoft Windows Server 2008 for Itanium-based Systems SP2

Microsoft Windows Vista Home Premium SP1

Microsoft Windows 7 for x64-based Systems 0

Microsoft Windows Server 2008 for x64-based Systems SP2

Microsoft Windows Server 2008 R2 Itanium SP1

Microsoft Windows Vista SP2

References

Microsoft Windows Kernel 'Win32k.sys' (CVE-2011-1877) Local Privilege Escalation Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report