Re: [qubes-users] Re: Improvement: check disk space before copy to VM

2016-11-14 Thread Jean-Philippe Ouellet
On Mon, Nov 14, 2016 at 2:42 PM, Jean-Philippe Ouellet wrote: > On Mon, Nov 14, 2016 at 5:49 AM, Sec Tester wrote: >> Could open up a vulnerability if not done carefully. >> >> VM could use it to query and identify other VMs in existence on the system. > >

Re: [qubes-users] Re: Improvement: check disk space before copy to VM

2016-11-14 Thread Jean-Philippe Ouellet
On Mon, Nov 14, 2016 at 5:49 AM, Sec Tester wrote: > Could open up a vulnerability if not done carefully. > > VM could use it to query and identify other VMs in existence on the system. There are already several timing side-channel ways to do that. Example: AppVM$