CVE-2010-4398

Known Exploited Public Exploit

Description

Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys 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 allows local users to gain privileges, and bypass the User Account Control (UAC) feature, via a crafted REG_BINARY value for a SystemDefaultEUDCFont registry key, aka "Driver Improper Interaction with Windows Kernel Vulnerability."

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 12.28% Top 10%
KEV Since 
Vendor Advisory microsoft.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://isc.sans.edu/diary.html?storyid=9988 issue tracking exploit
http://www.securityfocus.com/bid/45045 vdb entry third party advisory broken link
http://www.exploit-db.com/exploits/15609/ exploit vdb entry third party advisory
http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/ broken link
http://support.avaya.com/css/P8/documents/100127248 third party advisory
http://www.vupen.com/english/advisories/2011/0324 vdb entry broken link
http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/ exploit vdb entry third party advisory broken link
http://twitter.com/msftsecresponse/statuses/7590788200402945 not applicable
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011 patch vendor advisory
http://www.securitytracker.com/id?1025046 vdb entry third party advisory broken link
http://www.kb.cert.org/vuls/id/529673 third party advisory us government resource
http://secunia.com/advisories/42356 broken link third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162 vdb entry signature broken link

Frequently Asked Questions

What is the severity of CVE-2010-4398?
CVE-2010-4398 has been scored as a high severity vulnerability.
How to fix CVE-2010-4398?
To fix CVE-2010-4398, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-4398 being actively exploited in the wild?
It is confirmed that CVE-2010-4398 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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