openstack-neutron: L2 agent DoS through incorrect allowed address pairs
Published Aug 26, 2015
4.0
MEDIUMCVSS 2.0
EPSS 11.43%
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
No data.
No data.
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
openstack-neutron-0:2014.2.3-9.el7ost
Fixed · RHSA-2015:1680
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
openstack-neutron
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
openstack-neutron
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | openstack-neutron-0:2014.2.3-9.el7ost | Fixed | RHSA-2015:1680 |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | openstack-neutron | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | openstack-neutron | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 11.43% (0.11434) | 95.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 11.34% (0.11342) | 95.41th | v5 (v2026.06.15) |
| May 11, 2026 | 14.31% (0.14311) | 94.45th | v4 (v2025.03.14) |
| Feb 12, 2026 | 12.60% (0.12601) | 93.79th | v4 (v2025.03.14) |
| Jun 14, 2025 | 10.67% (0.10670) | 92.93th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.19% (0.08192) | 91.39th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.57% (0.18569) | 92.18th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.19% (0.08192) | 91.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.80% (0.02801) | 91.00th | v3 (v2023.03.01) |
| Sep 25, 2023 | 2.80% (0.02801) | 89.40th | v3 (v2023.03.01) |
| Jul 20, 2023 | 1.42% (0.01415) | 84.70th | v3 (v2023.03.01) |
| Jun 18, 2023 | 1.00% (0.01002) | 81.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00500) | 72.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.13% (0.01132) | 55.54th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.03% (0.01034) | 40.96th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
References (13)
- http://lists.openstack.org/pipermail/openstack-announce/2015-June/000377.html mailing-listx_refsource_MLISTVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1680.html vendor-advisoryx_refsource_REDHATVendor Advisory
- http://www.securityfocus.com/bid/75368 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2015:1680
- https://access.redhat.com/security/cve/CVE-2015-3221 Vendor Advisory
- https://bugs.launchpad.net/neutron/+bug/1461054 x_refsource_CONFIRMThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1232284 Issue Tracking
- https://git.openstack.org/cgit/openstack/neutron/commit/?id=9ff6138c47c95034ba845e9448ddffd147b51f38
- https://github.com/advisories/GHSA-wf44-4mgj-rwvx Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2026-856.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2015-3221
- https://web.archive.org/web/20200228084753/http://www.securityfocus.com/bid/75368
- https://www.cve.org/CVERecord?id=CVE-2015-3221
Change history (0)
No recorded changes yet.