HIGH8.2
PYSEC-2026-852
OpenStack Neutron Intended MAC-spoofing protection mechanism bypass
Quick fix
PYSEC-2026-852 — neutron: upgrade to the fixed version with the command below.
pip install --upgrade 'neutron>=7.1.0'Details
The IPTables firewall in OpenStack Neutron up to 7.0.4 and 8.x before 8.1.0 allows remote attackers to bypass an intended MAC-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via (1) a crafted DHCP discovery message or (2) crafted non-IP traffic.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-5363[ADVISORY]
- https://github.com/openstack/neutron/commit/5853af9cba6733725d6c9ac0db644f426713f0cf[WEB]
- https://github.com/openstack/neutron/commit/6a93ee8ac1a901c255e3475a24f1afc11d8bf80f[WEB]
- https://github.com/openstack/neutron/commit/997d7b03fb7f5528f0a3ce70867b9dcd9321509e[WEB]
- https://github.com/openstack/neutron/commit/fd5fd259a02156babdfcb12f66cde6ec9e7274ae[WEB]
- 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/299021[WEB]
- https://review.openstack.org/#/c/299023[WEB]
- https://review.openstack.org/#/c/299025[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-9pp3-cvmq-9p22[ADVISORY]