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OpenStack Neutron Improper Input Validation vulnerability

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Aug 7, 2026

Package

pip neutron (pip)

Affected versions

>= 2015.1.0, < 2015.1.1
>= 2000, < 2014.2.4

Patched versions

2015.1.1
2014.2.4

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.

References

Published by the National Vulnerability Database Aug 26, 2015
Published to the GitHub Advisory Database May 14, 2022
Reviewed Feb 8, 2023
Last updated Aug 7, 2026

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(96th percentile)

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

CVE ID

CVE-2015-3221

GHSA ID

GHSA-wf44-4mgj-rwvx

Source code

Credits

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