CVE-2013-0151

2013-03-0705:04:42

CWE-264

[email protected]

web.nvd.nist.gov

4.6 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.9%

JSON

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.