CVE-2011-0090: Input Validation
First published: Wed Feb 09 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, and R2, and Windows 7 does not properly validate user-mode input, which allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Vulnerability."
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 2003 Server | =sp2 | |
| Microsoft Windows 2003 Server | =sp2 | |
| Microsoft Windows 7 | ||
| Microsoft Windows 7 | ||
| Microsoft Windows Server 2003 | =sp2 | |
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | =r2 | |
| Microsoft Windows Server 2008 Itanium | =r2 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Vista | =sp1 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows Vista | =sp1 | |
| Microsoft Windows XP | =sp3 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows Vista | =sp1 |
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Reference Links
- http://www.securityfocus.com/bid/46150
- http://www.vupen.com/english/advisories/2011/0325
- http://secunia.com/advisories/43255
- http://osvdb.org/70814
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12455
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-012
Frequently Asked Questions
What is the severity of CVE-2011-0090?
CVE-2011-0090 is rated as a critical vulnerability allowing local users to gain elevated privileges.
How do I fix CVE-2011-0090?
To fix CVE-2011-0090, apply the latest security updates provided by Microsoft for your affected operating system.
Which versions of Windows are affected by CVE-2011-0090?
CVE-2011-0090 affects Microsoft Windows XP SP2 and SP3, Windows Vista, Windows Server 2003 SP2, Windows Server 2008, and Windows 7.
How does CVE-2011-0090 exploit user-mode input validation?
CVE-2011-0090 exploits the lack of proper validation of user-mode input in win32k.sys, allowing privilege escalation.
Can remote attackers exploit CVE-2011-0090?
No, CVE-2011-0090 is a local privilege escalation vulnerability and cannot be exploited remotely.
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