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Published: 07/03/2013 Updated: 13/02/2023

CVSS v2 Base Score: 4.6 | Impact Score: 6.9 | Exploitability Score: 3.2

VMScore: 409

Vector: AV:A/AC:H/Au:N/C:N/I:N/A:C

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.

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xen xen 4.2.0
xen xen 4.2.1

CWE-264 http://openwall.com/lists/oss-security/2013/01/22/10 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://xenbits.xen.org/gitweb/?p=xen.git%3Ba=commit%3Bh=d60d7082289a74e44b3dc8f67df46c3404ca08bf https://nvd.nist.gov

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CVE-2013-0151

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