Windows Kernel 64-bit stack memory disclosure in msrpc!LRPC_CASSOCIATION::AlpcSendCancelMessage(CVE-2018-0896)

We have discovered that the msrpc!LRPCCASSOCIATION::AlpcSendCancelMessage function sends an ALPC message with portions of uninitialized memory from the local stack frame on Windows 7 64-bit other versions were not tested. The message is 0x18 bytes long, 8 of which are uninitialized. The layout of...