Xen vCPU Context-Switch Vulnerability: Defeating ASLR and Protection Mechanisms (XSA-220)

CVE-2017-10916 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.

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