A new series of side-channel analysis methods have been discovered that potentially facilitate access to unauthorized information. These methods rely on common properties of both high-performance microprocessors modern operating systems and susceptibility is not limited to Intel processors, nor does it imply the processor is working outside its intended functional specification. All of the methods take advantage of speculative execution, a common technique in processors used to achieve high performance. This white paper provides information on the methods that have been documented by Google Project Zero and describes the mitigations that Intel is pursuing for each.

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Download the Intel Analysis of Speculative Execution Side Channels