Is CVE-2015-3221 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2015-3221 being exploited in the wild.

How severe is CVE-2015-3221?

Medium severity, with a CVSS score of 0, published 14 May 2022.

Which products and versions are affected?

OpenStack Neutron >= 2015.1.0, = 2000, < 2014.2.4; neutron (PyPI) ECOSYSTEM:introduced=0,fixed=2014.2.4,introduced=2015.1.0,fixed=2015.1.1, ECOSYSTEM:introduced=2000,fixed=2014.2.4.

Is there a fix for CVE-2015-3221?

Yes. neutron (PyPI): upgrade to 2014.2.4, 2015.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2015-3221 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2015-3221?

Check whether you run OpenStack Neutron or neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2015-3221: OpenStack Neutron denial of service in IPTables firewall driver

Q: Is there a fix for CVE-2015-3221?

Yes. neutron (PyPI): upgrade to 2014.2.4, 2015.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2015-3221 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2015-3221?

Check whether you run OpenStack Neutron or neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2015-3221 · Severity: medium · CVSS 0 · Published 2022-05-14

OpenStack Neutron, a networking service for cloud environments, is vulnerable to a denial-of-service attack. An authenticated user can cause the networking agent to crash by providing specific network address pairs that the system's firewall tools cannot process. This can disrupt network connectivity and management operations within the cloud environment.

Technologies: OpenStack Neutron, neutron (PyPI). Vendors: OpenStack, PyPI.

Quick answers

Is CVE-2015-3221 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2015-3221 being exploited in the wild.
How severe is CVE-2015-3221?: Medium severity, with a CVSS score of 0, published 14 May 2022.
Which products and versions are affected?: OpenStack Neutron >= 2015.1.0, < 2015.1.1; >= 2000, < 2014.2.4; neutron (PyPI) ECOSYSTEM:introduced=0,fixed=2014.2.4,introduced=2015.1.0,fixed=2015.1.1, ECOSYSTEM:introduced=2000,fixed=2014.2.4.
Is there a fix for CVE-2015-3221?: Yes. neutron (PyPI): upgrade to 2014.2.4, 2015.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2015-3221 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2015-3221?: Check whether you run OpenStack Neutron or neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

neutron (PyPI): upgrade to 2014.2.4, 2015.1.1 or later
```
pip install "neutron>=2015.1.1"
```

Technical details

An improper input validation vulnerability (CWE-20) exists in OpenStack Neutron when configured with the IPTables firewall driver. Remote authenticated users can trigger a denial of service by adding an allowed-address-pair that is rejected by the underlying 'ipset' tool, leading to a crash of the L2 agent. The issue affects Neutron versions before 2014.2.4 (Juno) and 2015.1.x before 2015.1.1 (Kilo). Patches are available in versions 2014.2.4 and 2015.1.1.

Affected products

OpenStack Neutron >= 2015.1.0, < 2015.1.1; >= 2000, < 2014.2.4

Identifiers

CVE-2015-3221
GHSA-wf44-4mgj-rwvx
PYSEC-2026-856

Timeline

2015-06-17: advisory: OpenStack security advisory issued
2015-08-26: disclosed: NVD publication date
2022-05-14: advisory: GitHub Advisory published

References

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