Microarchitectural Data Sampling

The Microarchitectural Data Sampling (MDS) vulnerabilities are a set of vulnerabilities in Intel x86 microprocessors that leak data across protection boundaries, that those data are not architecturally supposed to be visible across. They comprise:

ZombieLoad

a leak of already-loaded data from a processor's fill buffer

RIDL (Rogue In-Flight Data Load)

a leak from various internal processor buffers of data being loaded and stored

Fallout

a leak of data being stored from store buffers

Further reading

• Schwarz, Michael; Lipp, Moritz; Moghimi, Daniel; Van Bulck, Jo; Stecklina, Julian; Prescher, Thomas; Gruss, Daniel (2019-05-14). "ZombieLoad: Cross-Privilege-Boundary Data Sampling" (PDF). {{cite journal}}: Cite journal requires |journal= (help); Invalid |ref=harv (help)
• van Schaik, Stephan; Milburn, Alyssa; Österlund, Sebastian; Frigo, Pietro; Maisuradze, Giorgi; Razavi, Kaveh; Bos, Herbert; Giuffrida, Cristiano (2019-05-14). "RIDL: Rogue In-Flight Data Load" (PDF). {{cite journal}}: Cite journal requires |journal= (help); Invalid |ref=harv (help)
• Minkin, Marina; Moghimi, Daniel; Lipp, Moritz; Schwarz, Michael; Van Bulck, Jo; Genkin, Daniel; Gruss, Daniel; Piessens, Frank; Sunar, Berk; Yarom, Yuval (2019-05-14). "Fallout: Reading Kernel Writes From User Space" (PDF). {{cite journal}}: Cite has empty unknown parameter: |1= (help); Cite journal requires |journal= (help); Invalid |ref=harv (help)
• "cpu.fail". Graz University of Technology. 2019-05-14.

See also

• Meltdown (security vulnerability)