Side-Channel Vulnerability Variants 3a and 4 – Spectre and Meltdown

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Advanced Persistent Threat Activity Exploiting Managed Service Providers

On May 21, 2018, new variants of the side-channel central processing unit (CPU) hardware vulnerabilities known as Spectre and Meltdown were publicly disclosed. These variants—known as 3A and 4—can allow an attacker to obtain access to sensitive information on affected systems. Systems Affected CPU hardware implementations Description Common CPU hardware implementations are vulnerable to the …

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