Vulnerability Description
Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 2000 | All versions |
| Microsoft | Windows 2003 Server | datacenter_edition |
| Microsoft | Windows Vista | All versions |
| Microsoft | Windows Xp | All versions |
Related Weaknesses (CWE)
References
- http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnera
- http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_th
- http://isc.sans.org/diary.php?n&storyid=1965
- http://lists.grok.org.uk/pipermail/full-disclosure/2006-December/051394.html
- http://research.eeye.com/html/alerts/zeroday/20061215.html
- http://secunia.com/advisories/23448Vendor Advisory
- http://securitytracker.com/id?1017433
- http://www.determina.com/security.research/vulnerabilities/csrss-harderror.html
- http://www.kuban.ru/forum_new/forum2/files/19124.html
- http://www.security.nnov.ru/Gnews944.html
- http://www.security.nnov.ru/files/messagebox.c
- http://www.securityfocus.com/archive/1/455061/100/0/threaded
- http://www.securityfocus.com/archive/1/455088/100/0/threaded
- http://www.securityfocus.com/archive/1/455104/100/0/threaded
- http://www.securityfocus.com/archive/1/455158/100/0/threaded
FAQ
What is CVE-2006-6696?
CVE-2006-6696 is a vulnerability with a CVSS score of 6.9 (MEDIUM). Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted da...
How severe is CVE-2006-6696?
CVE-2006-6696 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2006-6696?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Vista, Microsoft Windows Xp.