CVE-2006-5758
HighSummary
Silnik renderowania grafiki w systemach Microsoft Windows 2000 do SP4 oraz Windows XP do SP2 mapuje struktury jądra GDI w globalnej sekcji pamięci współdzielonej z uprawnieniami tylko do odczytu. Inne procesy mogą jednak przemapować te struktury jako do zapisu, co pozwala lokalnym użytkownikom na wywołanie odmowy usługi (uszkodzenie pamięci i awaria) oraz uzyskanie uprawnień poprzez modyfikację struktur jądra.
Risk Assessment
Podatność ta stwarza ryzyko dla organizacji, ponieważ lokalni użytkownicy mogą wykorzystać ją do destabilizacji systemu oraz uzyskania nieautoryzowanych uprawnień. Może to prowadzić do poważnych konsekwencji, w tym utraty danych i naruszenia bezpieczeństwa.
Recommendation
Zaleca się aktualizację systemów operacyjnych do najnowszych wersji, które zawierają poprawki bezpieczeństwa. Należy również ograniczyć dostęp lokalnych użytkowników do systemów, aby zminimalizować ryzyko wykorzystania tej podatności.
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Original NVD description (English source)
The Graphics Rendering Engine in Microsoft Windows 2000 through 2000 SP4 and Windows XP through SP2 maps GDI Kernel structures on a global shared memory section that is mapped with read-only permissions, but can be remapped by other processes as read-write, which allows local users to cause a denial of service (memory corruption and crash) and gain privileges by modifying the kernel structures.