The vulnerability (CVE-2018-3665) within Intel Core and Xeon processors has just been confirmed by Intel. The flaw affects all devices running Intel Core-based microprocessors regardless of the installed operating systems, except some modern versions of Windows and Linux distributions. The vulnerability leverages a system performance optimization feature, called Lazy FP state restore, which is responsible for saving or restoring the FPU state of each running application ‘lazily’ when switching from one application to another, instead of doing it ‘eagerly’
Source: https://thehackernews.com/2018/06/intel-processor-vulnerability.html