Re: [Xen-users] Xen Security

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

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On 16/07/10 07:07, Iustin Pop wrote:
> On Thu, Jul 15, 2010 at 11:49:02PM +0100, Jonathan Tripathy wrote:
>    
> > Hi Everyone,
> >
> > My Xen host currently run DomUs which contain some very sensitive
> > information, used by our company. I wish to use the same server to
> > host some VMs for some customers. If we assume that networking is
> > set up securely, are there any other risks that I should worry
> > about?
> >      
> Maybe you should ask yourself this question: what is the cost of using a
> separate server for your customers' VM, versus the cost of leaking the
> sensitive information, if anything happens?
>
> Side channel attacks are still a possibility, I think. Leaking
> information via storage reuse is still a possibility, depending on your
> storage. So on…
>
> regards,
> iustin
>    
Can you please explain to me some of these "side channel attacks"? I've 
never heard of "storage reuse" before?
Thanks

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