CVE-2011-0089: 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 Window Class Improper Pointer Validation 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.vupen.com/english/advisories/2011/0325
- http://www.securityfocus.com/bid/46149
- http://secunia.com/advisories/43255
- http://osvdb.org/70817
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11638
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-012
Frequently Asked Questions
What is the severity of CVE-2011-0089?
CVE-2011-0089 has been rated as critical due to its potential to allow local users to gain elevated privileges on affected systems.
How do I fix CVE-2011-0089?
To mitigate CVE-2011-0089, ensure that your system has applied the latest security updates and patches from Microsoft.
Which operating systems are affected by CVE-2011-0089?
CVE-2011-0089 affects Microsoft Windows XP, Windows Vista, Windows 7, Windows Server 2003, and Windows Server 2008.
Can exploitation of CVE-2011-0089 be detected?
Exploitation attempts of CVE-2011-0089 may be detected through monitoring for unusual behavior or the execution of unauthorized applications.
Is CVE-2011-0089 still a vulnerability concern?
While CVE-2011-0089 was a significant concern at the time, it is less of a threat today due to the end of support for the affected systems and recommended upgrades.
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