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CVE-2015-3221

4.0 · MEDIUM

OpenStack Neutron before 2014.2.4 (juno) and 2015.1.x before 2015.1.1 (kilo), when using the IPTables firewall driver, allows remote authenticated users to cause a denial of service (L2 agent crash…

Published Aug 26, 2015openstackCWE-20EPSS 11.43%

Overview

CVE-2015-3221 is a medium-severity vulnerability affecting openstack neutron. It was published on August 26, 2015 and has a CVSS 2.0 base score of 4.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

OpenStack Neutron before 2014.2.4 (juno) and 2015.1.x before 2015.1.1 (kilo), when using the IPTables firewall driver, allows remote authenticated users to cause a denial of service (L2 agent crash) by adding an address pair that is rejected by the ipset tool.

Remediation

Check the references section for vendor advisories and patches from openstack. Update neutron 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
openstackneutron>= 2014.2, < 2014.2.4Affected

References

Reflists.openstack.org/pipermail/openstack-announce/2015-June/000377.htmlRefrhn.redhat.com/errata/RHSA-2015-1680.htmlRefwww.securityfocus.com/bid/75368Refbugs.launchpad.net/neutron/+bug/1461054Reflists.openstack.org/pipermail/openstack-announce/2015-June/000377.htmlRefrhn.redhat.com/errata/RHSA-2015-1680.htmlRefwww.securityfocus.com/bid/75368Refbugs.launchpad.net/neutron/+bug/1461054

How CyberStrike helps

Frequently asked questions

What is CVE-2015-3221?

CVE-2015-3221 is a medium-severity vulnerability affecting openstack neutron. It was published on August 26, 2015 and has a CVSS 2.0 base score of 4.0 (MEDIUM).

How severe is CVE-2015-3221?

This vulnerability has a CVSS 2.0 base score of 4.0, 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-2015-3221?

Check the references section for vendor advisories and patches from openstack. Update neutron 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-2015-3221?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-3221 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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