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CVE-2016-9381

7.5 · HIGH

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.

Published Jan 23, 2017CWE-362EPSS 0.29%

Overview

CVE-2016-9381 is a high-severity vulnerability. It was published on January 23, 2017 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.securityfocus.com/bid/94476Refwww.securitytracker.com/id/1037344Refxenbits.xen.org/xsa/advisory-197.htmlRefsecurity.gentoo.org/glsa/201612-56Refsupport.citrix.com/article/CTX218775Refwww.securityfocus.com/bid/94476Refwww.securitytracker.com/id/1037344Refxenbits.xen.org/xsa/advisory-197.htmlRefsecurity.gentoo.org/glsa/201612-56Refsupport.citrix.com/article/CTX218775

How CyberStrike helps

Frequently asked questions

What is CVE-2016-9381?

CVE-2016-9381 is a high-severity vulnerability. It was published on January 23, 2017 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2016-9381?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-9381?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2016-9381?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-9381 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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