Intel Chips' List of Security Flaws Grows
by Lucian Armasu August 15, 2018 at 9:38 AM - Source: Foreshadow Attack
Intel chips have been marred by another series of security flaws dubbed Foreshadow-NG. Researchers discovered the vulnerabilities, which primarily affect Intel’s Software Guard Extensions (SGX) and the security of virtualized environments.
What Is the Foreshadow Attack?
Foreshadow is yet another speculative execution flaw (much like Meltdown and Spectre) in Intel’s processors that allows attackers to steal sensitive contents stored in computers' or virtual machines' memory. Most modern processors utilize speculative execution to improve performance. As the name suggests, the chips will speculate or assume the instructions they need to execute next, instead of waiting around for the previous instructions to complete their execution. When the prediction is correct, this saves overall execution time, while the incorrect predictions are scrapped.
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