HIGH8.2
PYSEC-2026-854
OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism
Quick fix
PYSEC-2026-854 — neutron: upgrade to the fixed version with the command below.
pip install --upgrade 'neutron>=7.0.5'Details
The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a crafted DHCP discovery message.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-5362[ADVISORY]
- https://access.redhat.com/errata/RHSA-2016:1473[WEB]
- https://access.redhat.com/errata/RHSA-2016:1474[WEB]
- https://bugs.launchpad.net/neutron/+bug/1558658[WEB]
- https://github.com/openstack/neutron[PACKAGE]
- https://review.openstack.org/#/c/300202[WEB]
- https://review.openstack.org/#/c/303563[WEB]
- https://review.openstack.org/#/c/303572[WEB]
- https://security.openstack.org/ossa/OSSA-2016-009.html[WEB]
- http://www.openwall.com/lists/oss-security/2016/06/10/5[WEB]
- http://www.openwall.com/lists/oss-security/2016/06/10/6[WEB]
- https://pypi.org/project/neutron[PACKAGE]
- https://github.com/advisories/GHSA-qpwc-p365-pqrr[ADVISORY]