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prionPRIOn knowledge basePRION:CVE-2013-0151
HistoryMar 07, 2013 - 5:04 a.m.

Design/Logic Flaw

2013-03-0705:04:00
PRIOn knowledge base
www.prio-n.com
7

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.8%

The do_hvm_op function in xen/arch/x86/hvm/hvm.c in Xen 4.2.x on the x86_32 platform does not prevent HVM_PARAM_NESTEDHVM (aka nested virtualization) operations, which allows guest OS users to cause a denial of service (long-duration page mappings and host OS crash) by leveraging administrative access to an HVM guest in a domain with a large number of VCPUs.

CPENameOperatorVersion
xeneq4.2.0
xeneq4.2.1

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.8%