Tag: AmazonCloud

XEN Hypervisor Vulnerabilities

And you were wondering why Amazon had rolling reboots of EC2 recently… From the Whitepaper “FROM RING 3 TO RING0: EXPLOITING THE XEN X86 INSTRUCTION EMULATOR” (bitdefender): ABSTRACT While a VMM can provide a considerable level of security by isolation, it is generally true that by increasing the code-base that runs on a given host …

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