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Intel CPUs Undermined By Fresh Speculative Execution Flaws

August 15, 2018

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Three new speculative execution design flaws in Intel CPUs were disclosed today, this time impacting Intel’s Software Guard Extensions (SGX) technology, its OS and system management mode (SMM) and hypervisor software.

The three vulnerabilities would allow attacks on Intel Core and Xeon processors – similar to the Spectre and Meltdown flaws discovered earlier in January – and allow an attacker to steal sensitive information stored inside personal computers or third-party clouds.

Two groups of researchers discovered one of the flaws (CVE-2018-3615), which they dubbed Foreshadow, and in January reported it to Intel.

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