VM Escape
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def
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breaking out of a virtual machine to interact directly with the host operating system or hardware — once achieved, an attacker can control the host and every other guest VM on it
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example
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March 2017, Pwn2Own — competitors chained a JavaScript engine bug (Microsoft Edge), a Windows 10 kernel bug, and a VMware hardware simulation bug to escape a VM to the host; patches followed soon after
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related