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CVE-2016-2140

5.3 · MEDIUM

The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated user…

Published Apr 12, 2016CWE-200EPSS 2.11%

Overview

CVE-2016-2140 is a medium-severity vulnerability. It was published on April 12, 2016 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

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.openwall.com/lists/oss-security/2016/03/08/6Refwww.securityfocus.com/bid/84277Refbugs.launchpad.net/nova/+bug/1548450Refsecurity.openstack.org/ossa/OSSA-2016-007.htmlRefwww.openwall.com/lists/oss-security/2016/03/08/6Refwww.securityfocus.com/bid/84277Refbugs.launchpad.net/nova/+bug/1548450Refsecurity.openstack.org/ossa/OSSA-2016-007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2016-2140?

CVE-2016-2140 is a medium-severity vulnerability. It was published on April 12, 2016 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

How severe is CVE-2016-2140?

This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-2140?

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-2016-2140?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-2140 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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