USN-5612-1: Intel Microcode vulnerability
Pietro Borrello, Andreas Kogler, Martin Schwarzl, Daniel Gruss, Michael
Schwarz and Moritz Lipp discovered that some Intel processors did not
properly clear data between subsequent xAPIC MMIO reads. This could allow a
local attacker to compromise SGX enclaves.
Source: USN-5612-1: Intel Microcode vulnerability