Abstract
The use of virtualization can be attributed to the success of cloud computing. However, usage of a hypervisor in a shared environment among mistrusting users presents significant challenges. This paper surveys the works on host hypervisor security issues presented in cloud computing, performing a short review of current literature on the subject. Addressing several key topics, namely threats and known attacks against the hypervisor or a virtual machine (vm) that exist in a shared environment. This paper also contains a thorough review and comparison of the current solutions and proposed mitigations for the known attacks and identifies any potential gaps. Aiming to uncover if a hypervisor can provide the level of confidentiality, integrity and availability expected by cloud consumers. Research is critically analyzed and consideration for each solutions suitability of implementation in an Infrastructure as a Service (IaaS) environment is applied, including the impact on performance, if any.
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