CVE-2006-6696 Information

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.

Reference

http://blogs.technet.com/msrc/archive/2006/12/22/new-report-of-a-windows-vulnerability.aspx http://groups.google.ca/group/microsoft.public.win32.programmer.kernel/browse_thread/thread/c5946bf40f227058/7bd7b5d66a4e5aff 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/23448 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/files/messagebox.c http://www.security.nnov.ru/Gnews944.html 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 http://www.securityfocus.com/archive/1/455546/100/0/threaded http://www.securityfocus.com/archive/1/466331/100/200/threaded http://www.securityfocus.com/bid/21688 http://www.securityfocus.com/bid/23324 http://www.vupen.com/english/advisories/2006/5120 http://www.vupen.com/english/advisories/2007/1325 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-021 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A1816