CVE-2011-0087: Input Validation
First published: Wed Feb 09 2011(Updated: )
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Server 2003 SP2, Vista SP1 and SP2, and Server 2008 Gold and SP2 does not properly validate user-mode input, which allows local users to gain privileges via a crafted application, aka "Win32k Insufficient User Input 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 Server 2003 | =sp2 | |
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| Microsoft Windows Server 2008 Itanium | ||
| 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/46148
- http://secunia.com/advisories/43255
- http://www.vupen.com/english/advisories/2011/0325
- http://osvdb.org/70819
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12312
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-012
Frequently Asked Questions
What is the severity of CVE-2011-0087?
CVE-2011-0087 has a critical severity rating as it allows local users to escalate privileges by exploiting improper input validation in win32k.sys.
How do I fix CVE-2011-0087?
To fix CVE-2011-0087, you should apply the latest security updates provided by Microsoft for affected versions of Windows.
Which versions of Windows are affected by CVE-2011-0087?
CVE-2011-0087 affects Microsoft Windows XP SP2 and SP3, Windows Vista SP1 and SP2, Windows Server 2003 SP2, and Windows Server 2008.
Can CVE-2011-0087 be exploited remotely?
CVE-2011-0087 is a local privilege escalation vulnerability, meaning that it cannot be exploited remotely without local access to the machine.
What is the main impact of CVE-2011-0087 on affected systems?
The main impact of CVE-2011-0087 is the potential for local users to gain elevated privileges, allowing them to execute arbitrary code with higher system permissions.
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