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VuXML IDDescription
3ae078ca-c7eb-11e6-ae1b-002590263bf5xen-kernel -- x86 PV guests may be able to mask interrupts

The Xen Project reports:

Certain PV guest kernel operations (page table writes in particular) need emulation, and use Xen's general x86 instruction emulator. This allows a malicious guest kernel which asynchronously modifies its instruction stream to effect the clearing of EFLAGS.IF from the state used to return to guest context.

A malicious guest kernel administrator can cause a host hang or crash, resulting in a Denial of Service.


Discovery 2016-12-21
Entry 2016-12-22
xen-kernel
< 4.7.1_3

CVE-2016-10024
https://xenbits.xen.org/xsa/advisory-202.html