CVE-2011-1231: Null Pointer Dereference
First published: Wed Apr 13 2011(Updated: )
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."
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2003 | =sp2 | |
| Microsoft Windows 7 | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Vista | =sp1 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows XP | =sp3 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows Vista | =sp1 |
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Reference Links
- http://support.avaya.com/css/P8/documents/100133352
- http://www.securityfocus.com/bid/47231
- http://secunia.com/advisories/44156
- http://www.vupen.com/english/advisories/2011/0952
- http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx
- http://osvdb.org/71737
- http://www.securitytracker.com/id?1025345
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66413
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12036
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034
Frequently Asked Questions
What is the severity of CVE-2011-1231?
CVE-2011-1231 has a high severity level as it can lead to local privilege escalation in affected Windows systems.
How do I fix CVE-2011-1231?
To fix CVE-2011-1231, apply the latest security updates and patches provided by Microsoft for the affected Windows versions.
Which Windows versions are affected by CVE-2011-1231?
CVE-2011-1231 affects multiple Windows versions, including Windows XP SP2 and SP3, Windows Vista SP1 and SP2, and Windows 7 among others.
Can CVE-2011-1231 be exploited remotely?
CVE-2011-1231 cannot be exploited remotely as it requires local access to the affected system.
What is the impact of exploiting CVE-2011-1231?
Exploiting CVE-2011-1231 allows attackers to gain elevated privileges, leading to potential unauthorized actions on the system.
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- agent/software-canonical-lookup-request
- collector/nvd-historical
- collector/nvd-index
- vendor/microsoft
- canonical/microsoft windows server 2003
- version/microsoft windows server 2003/sp2
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- canonical/microsoft windows server
- version/microsoft windows server/sp2
- version/microsoft windows server/r2
- canonical/microsoft windows vista
- version/microsoft windows vista/sp1
- version/microsoft windows vista/sp2
- canonical/microsoft windows xp
- version/microsoft windows xp/sp3
- version/microsoft windows xp/sp2