I'm probably missing some nuance, but this doesn't sound like it would be especially hard for a user to stumble across accidentally anyway (and then get very confused). It also doesn't seem like even a determined attacker could take advantage of this for a particularly focused attack due to the need for an admin to live migrate the instance first, the random nature of the resources they might get access to, and the fact that it can only be exploited once per instance (so somewhat expensive exercise to repeat at a massive enough scale for effective dragnetting).
What versions of Nova does this affect, does anyone know off hand?
I'm probably missing some nuance, but this doesn't sound like it would be especially hard for a user to stumble across accidentally anyway (and then get very confused). It also doesn't seem like even a determined attacker could take advantage of this for a particularly focused attack due to the need for an admin to live migrate the instance first, the random nature of the resources they might get access to, and the fact that it can only be exploited once per instance (so somewhat expensive exercise to repeat at a massive enough scale for effective dragnetting).
What versions of Nova does this affect, does anyone know off hand?