A new class of side channel vulnerabilities impacting all modern Intel chips have been disclosed. Microarchitectural Data Sampling (MDS) is comprised of four related techniques, Intel said. MDS is a sub-class of previously disclosed speculative execution side-channel vulnerabilities. The four different attack vectors are dubbed ZombieLoad, Fallout, RIDL (Rogue In-Flight Data Load) and Store-to-Leak Forwarding. Intel said it is not aware of any reported real-world exploits of these security issues.
Source: https://threatpost.com/intel-cpus-impacted-by-new-class-of-spectre-like-attacks/144728/