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I was wondering if there was any comment/status on INTEL-SA-00075? As far as I can tell from their documentation some of their Xeon processors are affected and I think, from what I can see on some of my Rackspace VMs, that they're running Xeons.
I had the same problem. I find nothing related :(
Security issues are constantly evolving, and new vulnerabilities surface and may need to be addressed. Rackspace constantly monitors for these vulnerabilities and works to resolve issues without affecting customer environments to the extent possible.
Should we identify third party issues that could impact our customers' use of Rackspace services, our first priority is to ensure our customers’ environments are protected.
Rackspace is aware of a vulnerability affecting Intel processor firmware that was announced in May 2017. If exploited, this vulnerability has the ability to cause privilege escalation. Our engineers have reviewed the Rackspace environment, and determined that no additional action is needed at this time.