Category: Security

Xen privilege escalation vulnerability on Intel CPU – CVE-2012-0217

I’ve just built and rolled out packages that have been patched against this. If you are running Xen on a 64 bit machine, please make sure you update to 4.1.2-8 ASAP. From the Xen-Announce post: ISSUE DESCRIPTION ================= Rafal Wojtczuk has discovered a vulnerability which can allow a 64-bit PV guest kernel running on a …

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Network antispoof with Xen 4.x

I’ve recently set up a new Xen Dom0 for use by a lot of people – many of whom I may not know very well. This being the case, I want to make sure that people behave and don’t take more than they are allocated. The big thing that I needed to solve was people …

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