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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."

• http://isc.sans.edu/diary.html?storyid=9988 x_refsource_MISC
• http://www.securityfocus.com/bid/45045 vdb-entryx_refsource_BID
• http://www.exploit-db.com/exploits/15609/ exploitx_refsource_EXPLOIT-DB
• http://nakedsecurity.sophos.com/2010/11/25/new-windows-zero-day-flaw-bypasses-uac/ x_refsource_MISC
• http://support.avaya.com/css/P8/documents/100127248 x_refsource_CONFIRM
• http://www.vupen.com/english/advisories/2011/0324 vdb-entryx_refsource_VUPEN
• http://www.exploit-db.com/bypassing-uac-with-user-privilege-under-windows-vista7-mirror/ x_refsource_MISC
• http://twitter.com/msftsecresponse/statuses/7590788200402945 x_refsource_MISC
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011 vendor-advisoryx_refsource_MS
• http://www.securitytracker.com/id?1025046 vdb-entryx_refsource_SECTRACK
• http://www.kb.cert.org/vuls/id/529673 third-party-advisoryx_refsource_CERT-VN
• http://secunia.com/advisories/42356 third-party-advisoryx_refsource_SECUNIA
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12162 vdb-entrysignaturex_refsource_OVAL
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4398 government-resource