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neutron — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-14636

Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.

Products
neutron
Affected versions
Not specified
Fixed versions
2:13.0.0-1
CVEs
CVE-2018-14636
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 00:07 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-14636

core-osv · Original source

Published 10 Sept 2018, 19:29 UTC

Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.

osv:DEBIAN-CVE-2018-14636

neutron

Fixed versions: 2:13.0.0-1

neutron

Fixed versions: 2:13.0.0-1

neutron

Fixed versions: 2:13.0.0-1

Complete source record
{
  "id": "c1df412c957d1eeec06db5db2e231b03b8365ee6214525114bd54591b5d2d4a6",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-14636",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-14636",
    "summary": "Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.",
    "evidence": "osv:DEBIAN-CVE-2018-14636",
    "products": [
      {
        "name": {
          "value": "neutron",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:13.0.0-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "neutron",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:13.0.0-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "neutron",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2:13.0.0-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2018-14636",
      "aliases": [
        "DEBIAN-CVE-2018-14636"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:13.0.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "neutron",
            "purl": "pkg:deb/debian/neutron?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14636.json"
          },
          "ecosystem_specific": {
            "urgency": "low"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:13.0.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "neutron",
            "purl": "pkg:deb/debian/neutron?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14636.json"
          },
          "ecosystem_specific": {
            "urgency": "low"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2:13.0.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "neutron",
            "purl": "pkg:deb/debian/neutron?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14636.json"
          },
          "ecosystem_specific": {
            "urgency": "low"
          }
        }
      ],
      "modified": "2026-10-23T18:02:59.681136632Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-14636"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-14636"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-14636",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 420047,
  "published_at": "2018-09-10T19:29:00.407+00:00"
}