CVE-2013-0151
First published: Thu Mar 07 2013(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen XAPI | =4.2.0 | |
| Xen XAPI | =4.2.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2013-0151?
CVE-2013-0151 has a moderate severity rating due to its potential for causing denial of service and host OS crashes.
How do I fix CVE-2013-0151?
To fix CVE-2013-0151, upgrade to Xen versions 4.2.2 or later, which include mitigations for this vulnerability.
What types of systems are affected by CVE-2013-0151?
CVE-2013-0151 affects Xen virtualization systems on the x86_32 platform running versions 4.2.0 and 4.2.1.
Can CVE-2013-0151 be exploited remotely?
CVE-2013-0151 allows guest OS users with administrative access to exploit the vulnerability and potentially crash the host OS.
Is CVE-2013-0151 related to nested virtualization?
Yes, CVE-2013-0151 involves the handling of nested virtualization operations, specifically through the HVM_PARAM_NESTEDHVM parameter.
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