CVE-2013-0151

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/55082 third party advisory
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor advisory
http://xenbits.xen.org/gitweb/?p=xen.git%3Ba=commit%3Bh=d60d7082289a74e44b3dc8f67df46c3404ca08bf
http://openwall.com/lists/oss-security/2013/01/22/10 mailing list

Frequently Asked Questions

What is the severity of CVE-2013-0151?
CVE-2013-0151 has been scored as a medium severity vulnerability.
How to fix CVE-2013-0151?
To fix CVE-2013-0151, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-0151 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-0151 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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