CVE-2011-1236: Use After Free
First published: Wed Apr 13 2011(Updated: )
Use-after-free vulnerability in 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 leverages incorrect driver object management, a different vulnerability than other "Vulnerability Type 1" CVEs listed in MS11-034, aka "Win32k Use After Free 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://secunia.com/advisories/44156
- http://osvdb.org/71751
- 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://www.securityfocus.com/bid/47213
- http://www.securitytracker.com/id?1025345
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66418
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12478
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034
Frequently Asked Questions
What is the severity of CVE-2011-1236?
CVE-2011-1236 is classified as a high severity vulnerability that can allow local users to gain elevated privileges.
How do I fix CVE-2011-1236?
To fix CVE-2011-1236, users should apply the latest security updates provided by Microsoft for the affected Windows operating systems.
Which operating systems are affected by CVE-2011-1236?
CVE-2011-1236 affects Microsoft Windows XP, Windows Vista, Windows 7, and various versions of Windows Server 2003 and 2008.
What type of vulnerability is CVE-2011-1236?
CVE-2011-1236 is a use-after-free vulnerability found in the win32k.sys component of Microsoft Windows.
Can CVE-2011-1236 be exploited remotely?
CVE-2011-1236 cannot be exploited remotely and requires local access by the attacker to execute a crafted application.
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