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CVE-2013-4551

5.7 · MEDIUM

Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of s…

Published Nov 18, 2013xenCWE-20EPSS 0.80%

Overview

CVE-2013-4551 is a medium-severity vulnerability affecting xen xen. It was published on November 18, 2013 and has a CVSS 2.0 base score of 5.7 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Xen 4.2.x and 4.3.x, when nested virtualization is disabled, does not properly check the emulation paths for (1) VMLAUNCH and (2) VMRESUME, which allows local HVM guest users to cause a denial of service (host crash) via unspecified vectors related to "guest VMX instruction execution."

Remediation

Check the references section for vendor advisories and patches from xen. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Reflists.opensuse.org/opensuse-updates/2013-12/msg00059.htmlRefsecunia.com/advisories/55398Refsecurity.gentoo.org/glsa/glsa-201407-03.xmlRefwww.openwall.com/lists/oss-security/2013/11/11/1Refwww.securityfocus.com/bid/63625Refwww.securitytracker.com/id/1029313Refexchange.xforce.ibmcloud.com/vulnerabilities/88649Reflists.opensuse.org/opensuse-updates/2013-12/msg00059.htmlRefsecunia.com/advisories/55398Refsecurity.gentoo.org/glsa/glsa-201407-03.xml

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4551?

CVE-2013-4551 is a medium-severity vulnerability affecting xen xen. It was published on November 18, 2013 and has a CVSS 2.0 base score of 5.7 (MEDIUM).

How severe is CVE-2013-4551?

This vulnerability has a CVSS 2.0 base score of 5.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-4551?

Check the references section for vendor advisories and patches from xen. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-4551?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4551 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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