Multiple buffer overflows in X.org libXi 1.7.1 and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the (1) XGetDeviceButtonMapping, (2) XIPassiveGrabDevice, and (3) XQueryDeviceState functions.

X.org libXi 1.7.1 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to an unexpected sign extension in the XListInputDevices function.

Multiple integer overflows in X.org libXi 1.7.1 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XGetDeviceControl, (2) XGetFeedbackControl, (3) XGetDeviceDontPropagateList, (4) XGetDeviceMotionEvents, (5) XIGetProperty, (6) XIGetSelectedEvents, (7) XGetDeviceProperties, and (8) XListInputDevices functions.