Apple Mac OSX Kernel - Null Pointer Dereference in AppleGraphicsDeviceControl

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=782 AppleGraphicsDeviceControlClient doesn't check that its pointer to its IOService at this+0xd8 is non-null before using it in all external methods. We can set this pointer to NULL by racing two threads, one of which calls...

Apple Mac OSX Kernel - Code Execution Due to Lack of Bounds Checking in AppleUSBPipe::Abort

Apple Mac OSX Kernel - Code Execution Due to Lack of Bounds Checking in AppleUSBPipe::Abort / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=728 External Method 36 of IOUSBInterfaceUserClient is AbortStreamPipe. It takes two scalar inputs and uses the second one as an array ind...

Apple Mac OSX Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in Nvidia Geforce Driver

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=709 nvDevice::ReleaseDeviceTexture is external method 0x10a of userclient 5 of the geforce IOAccelerator. It takes a single uint argument text:000000000001BCD2 mov r14d, esi ... text:000000000001BD08 and r14d, 7FFFFFFFh -- clear...

Apple Mac OSX - Local Denial of Service

/ 2015, Maxime Villard, CVE-2015-1100 Local DoS caused by a missing limit check in the fat loader of the Mac OS X Kernel. $ gcc -o Mac-OS-XFat-DoS Mac-OS-XFat-DoS.c $ ./Mac-OS-XFat-DoS BINARY-NAME Obtained from: http://m00nbsd.net/garbage/Mac-OS-XFat-DoS.c Analysis:...