openstack-neutron: Firewall rules bypass through port update
Published Oct 27, 2015
3.5
LOWCVSS 2.0
EPSS 0.97%
Description
Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.
Affected products
No data.
No data.
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6
openstack-neutron-0:2014.1.5-4.el6ost
Fixed · RHSA-2015:1909
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
openstack-neutron-0:2014.1.5-4.el7ost
Fixed · RHSA-2015:1909
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
openstack-neutron-0:2014.2.3-19.el7ost
Fixed · RHSA-2015:1909
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
openstack-neutron-0:2015.1.1-7.el7ost
Fixed · RHSA-2015:1909
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | openstack-neutron-0:2014.1.5-4.el6ost | Fixed | RHSA-2015:1909 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | openstack-neutron-0:2014.1.5-4.el7ost | Fixed | RHSA-2015:1909 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | openstack-neutron-0:2014.2.3-19.el7ost | Fixed | RHSA-2015:1909 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | openstack-neutron-0:2015.1.1-7.el7ost | Fixed | RHSA-2015:1909 |
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:M/Au:S/C:N/I:P/A:N
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.97% (0.00971) | 60.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.96% (0.00963) | 56.86th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00094) | 24.40th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.19% (0.00188) | 57.54th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.19% (0.00188) | 56.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00188) | 54.50th | 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://rhn.redhat.com/errata/RHSA-2015-1909.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2015/09/08/9 mailing-listx_refsource_MLIST
- https://access.redhat.com/errata/RHSA-2015:1909
- https://access.redhat.com/security/cve/CVE-2015-5240 Vendor Advisory
- https://bugs.launchpad.net/neutron/+bug/1489111 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1258458 x_refsource_CONFIRMIssue Tracking
- https://github.com/advisories/GHSA-hhpj-6pj7-wpx5 Advisory
- https://github.com/openstack/neutron/commit/767cea23de44a963c6793ffe30ea5c6827d27a38
- https://github.com/openstack/neutron/commit/bbca973986fdc99eae9d1b2545e8246c0b2be2e2
- https://github.com/openstack/neutron/commit/fdc3431ccd219accf6a795079d9b67b8656eed8e
- https://nvd.nist.gov/vuln/detail/CVE-2015-5240
- https://security.openstack.org/ossa/OSSA-2015-018.html x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-5240
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-1909.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.openwall.com/lists/oss-security/2015/09/08/9 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/errata/RHSA-2015:1909 | ||
| https://access.redhat.com/security/cve/CVE-2015-5240 | Vendor Advisory | |
| https://bugs.launchpad.net/neutron/+bug/1489111 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1258458 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/advisories/GHSA-hhpj-6pj7-wpx5 | Advisory | |
| https://github.com/openstack/neutron/commit/767cea23de44a963c6793ffe30ea5c6827d27a38 | ||
| https://github.com/openstack/neutron/commit/bbca973986fdc99eae9d1b2545e8246c0b2be2e2 | ||
| https://github.com/openstack/neutron/commit/fdc3431ccd219accf6a795079d9b67b8656eed8e | ||
| https://nvd.nist.gov/vuln/detail/CVE-2015-5240 | ||
| https://security.openstack.org/ossa/OSSA-2015-018.html | x_refsource_CONFIRMVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2015-5240 |
Change history (0)
No recorded changes yet.