The start of 2018 was not the best – new vulnerabilities has been detected and reported worldwide.
Meltdown breaks the most fundamental isolation between user applications and the operating system. This attack allows a program to access the memory, and thus also the secrets, of other programs and the operating system.
Spectre breaks the isolation between different applications. It allows an attacker to trick error-free programs, which follow best practices, into leaking their secrets.
Most certainly you are affected by the vulnerabilities and you can’t verify that you have exploited it against you.
More Information:
Allot of useful information and especially a great link library to all major vendors official information and advice in the end of this link.