Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.2.0 |
Related Weaknesses (CWE)
References
- 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=d60d7082289a74e44b3dc8f6
- 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=d60d7082289a74e44b3dc8f6
FAQ
What is CVE-2013-0151?
CVE-2013-0151 is a vulnerability with a CVSS score of 4.6 (MEDIUM). 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...
How severe is CVE-2013-0151?
CVE-2013-0151 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-0151?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.