CVE-2010-2549
HighSummary
Podatność typu use-after-free w sterownikach trybu jądra w systemach Microsoft Windows Vista SP1, SP2 oraz Server 2008 Gold i SP2 umożliwia lokalnym użytkownikom uzyskanie uprawnień lub spowodowanie odmowy usługi (awarii systemu) poprzez wielokrotne wywoływanie funkcji NtUserCheckAccessForIntegrityLevel, co prowadzi do usunięcia obiektu procesu w użyciu.
Risk Assessment
Organizacja może być narażona na uzyskanie nieautoryzowanych uprawnień przez lokalnych użytkowników oraz na awarie systemu, co może prowadzić do przestojów i utraty danych.
Recommendation
Zaleca się aktualizację systemów do najnowszych wersji oraz monitorowanie i ograniczenie dostępu do funkcji, które mogą wywoływać tę podatność.
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Original NVD description (English source)
Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Vista SP1 and SP2 and Server 2008 Gold and SP2 allows local users to gain privileges or cause a denial of service (system crash) by using a large number of calls to the NtUserCheckAccessForIntegrityLevel function to trigger a failure in the LockProcessByClientId function, leading to deletion of an in-use process object, aka "Win32k Reference Count Vulnerability."

