It was reported by the media earlier this week that an issue on Intel based servers could lead to a “break out” from a VM to the host in certain virtualisation products, including Microsoft. Obviously this would be a huge concern, especially in environments where security and isolation are an issue, e.g. public cloud/hosting.
I asked the Hyper-V product group if Hyper-V was actually affected. They group allowed us to share that:
- The problem does affect the 64-bit OS’s on Intel hardware, but Hyper-V is not affected.
- This problem will not lead to break outs from Hyper-V VMs.
- Windows 8/Server 2012 are not affected.
So that’s put that one to bed.