{"id":"GHSA-qpwc-p365-pqrr","summary":"OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism","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.","aliases":["CVE-2016-5362","PYSEC-2026-854"],"modified":"2026-07-07T11:56:34.898699357Z","published":"2022-05-14T02:19:49Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-04-14T20:58:57Z","nvd_published_at":"2016-06-17T15:59:00Z","cwe_ids":["CWE-923"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-5362"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2016:1473"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2016:1474"},{"type":"WEB","url":"https://bugs.launchpad.net/neutron/+bug/1558658"},{"type":"PACKAGE","url":"https://github.com/openstack/neutron"},{"type":"WEB","url":"https://review.openstack.org/#/c/300202"},{"type":"WEB","url":"https://review.openstack.org/#/c/303563"},{"type":"WEB","url":"https://review.openstack.org/#/c/303572"},{"type":"WEB","url":"https://security.openstack.org/ossa/OSSA-2016-009.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/06/10/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/06/10/6"}],"affected":[{"package":{"name":"neutron","ecosystem":"PyPI","purl":"pkg:pypi/neutron"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.5"}]}],"versions":["0.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-qpwc-p365-pqrr/GHSA-qpwc-p365-pqrr.json"}},{"package":{"name":"neutron","ecosystem":"PyPI","purl":"pkg:pypi/neutron"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.1.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-qpwc-p365-pqrr/GHSA-qpwc-p365-pqrr.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"}]}