CVE-2015-3221

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 11.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-08-26 · updated 2026-06-17
Weakness: CWE-20

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.

Affected products

OpenStack Neutron: from 2014.2 before 2014.2.4; from 2015.1.0 before 2015.1.1 — fixed in 2014.2.4, 2015.1.1

How to fix

Upgrade to a fixed version: OpenStack Neutron 2014.2.4, 2015.1.1. Check the vendor advisory for mitigations.

References

http://lists.openstack.org/pipermail/openstack-announce/2015-June/000377.html
http://rhn.redhat.com/errata/RHSA-2015-1680.html
http://www.securityfocus.com/bid/75368
https://bugs.launchpad.net/neutron/+bug/1461054
http://lists.openstack.org/pipermail/openstack-announce/2015-June/000377.html
http://rhn.redhat.com/errata/RHSA-2015-1680.html
http://www.securityfocus.com/bid/75368
https://bugs.launchpad.net/neutron/+bug/1461054

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