l3D has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to Ipv4SetEchoRequestCreate() in tcpip.sys not releasing a locked memory page before process termination when being interrupted during creation of an echo request. This can be exploited to trigger a bug-check that crashes the system.
The vulnerability is confirmed in a fully patched versions of Windows Vista Business SP1, Windows 7 Professional, and Windows Server 2008 Enterprise SP2.
Solution: Grant only trusted users access to affected systems.
Provided and/or discovered by: l3D
Original Advisory: http://nullbyte.org.il/View_113_Microsoft_Windows_DoS_%28IcmpSendEcho2Ex_interrupting%29.html
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Subject: Windows "Ipv4SetEchoRequestCreate()" Interruption Denial of Service
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