{"id":"CVE-2015-5240","aliases":["DEBIAN-CVE-2015-5240","EUVD-2022-4160","GHSA-hhpj-6pj7-wpx5","PYSEC-2026-853","RHSA-2015:1909","SUSE-SU-2015:1890-1","SUSE-SU-2015:2220-1"],"status":"published","title":"OpenStack Neutron Race condition vulnerability","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.","severity":{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00976,"percentile":0.62336,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-362"],"published":"2015-10-15T02:07:06Z","modified":"2026-09-09T06:47:33Z","fixes":[{"ecosystem":"PyPI","package":"neutron","fixed_in":["7.0.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"neutron","fixed_in":["1:7.0.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"neutron","fixed_in":["1:7.0.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"neutron","fixed_in":["1:7.0.0-1"],"sources":["osv"]},{"ecosystem":"Red Hat:openstack:5::el6","package":"openstack-neutron","fixed_in":["0:2014.1.5-4.el6ost"],"sources":["osv"]},{"ecosystem":"Red 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applied.","status":"published","published":"2015-10-27T16:00:00Z","modified":"2024-08-06T06:41:08Z","updated_at":"2026-11-03T02:22:00.863884Z"}],"ghsa":[{"id":"GHSA-hhpj-6pj7-wpx5","title":"OpenStack Neutron Race condition vulnerability","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.","status":"published","published":"2022-05-17T03:52:44Z","modified":"2024-05-14T20:58:27Z","cwes":["CWE-362"],"updated_at":"2026-11-02T14:37:48.848211Z"}],"nvd":[{"id":"CVE-2015-5240","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.","status":"published","published":"2015-10-27T16:59:06.23Z","modified":"2026-06-17T00:28:44.36Z","cvss":[{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:03:12.30866Z"}],"osv":[{"id":"CVE-2015-5240","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.","status":"published","published":"2015-10-27T16:59:06Z","modified":"2026-07-07T11:56:20.536165385Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-5240","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.","status":"published","published":"2015-10-27T16:59:06.23Z","modified":"2026-09-09T06:47:33.272905948Z","updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"GHSA-hhpj-6pj7-wpx5","title":"OpenStack Neutron Race condition vulnerability","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.","status":"published","published":"2022-05-17T03:52:44Z","modified":"2026-07-07T11:56:20.536165385Z","cwes":["CWE-362"],"updated_at":"2026-11-02T15:46:49.28217Z"},{"id":"PYSEC-2026-853","title":"OpenStack Neutron Race condition vulnerability","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.","status":"published","published":"2026-07-06T08:03:25.638146Z","modified":"2026-07-07T11:45:19.101937521Z","updated_at":"2026-11-02T15:52:58.117212Z"},{"id":"RHSA-2015:1909","title":"Red Hat Security Advisory: openstack-neutron security and bug fix update","status":"published","published":"2024-09-13T10:37:43Z","modified":"2026-08-01T10:02:29Z","updated_at":"2026-11-02T15:53:03.182161Z"},{"id":"SUSE-SU-2015:1890-1","title":"Security update for openstack-neutron and crowbar-barclamp-neutron","description":"\nThis update provides security fixes and improvements for openstack-neutron and\ncrowbar-barclamp-neutron.\n\ncrowbar-barclamp-neutron:\n\n- Add infoblox support.\n- Add configurations required to support DHCP relay.\n- Create 'floating' network as 'flat' provider network. (bsc#946882)\n- Fix search for Nova instance.\n\nopenstack-neutron:\n\n- Fix usage_audit to work with ML2.\n- Fix UDP offloading issue with virtio VMs. (bsc#948704)\n- Fix ipset can't be destroyed when last rule is deleted.\n- Add ARP spoofing protection for LinuxBridge agent.\n- Don't use ARP responder for IPv6 addresses in ovs.\n- Stop device_owner from being set to 'network:*'. (bsc#943648, CVE-2015-5240)\n","status":"published","published":"2015-10-15T02:07:06Z","modified":"2026-02-04T04:18:23.712046Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"SUSE-SU-2015:2220-1","title":"Security update for openstack-nova and openstack-neutron","description":"\nThis update for openstack-nova and openstack-neutron provides various fixes and improvements.\n\nopenstack-nova:\n\n- Fix instance filtering. (bsc#927625)\n- Remove error messages from multipath command output before parsing. (bsc#949529)\n- Fix live-migration usage of the wrong connector information.\n- Added requirement for memcached to python-nova. (bsc#942457)\n- Don't expect meta attributes in object_compat that aren't in the db obj. (bsc#949070, CVE-2015-7713)\n- Kill rsync/scp processes before deleting instance. (bsc#935017, CVE-2015-3241)\n- Sync process utils from oslo for execute callbacks. (bsc#935017, CVE-2015-3241)\n- Fix rebuild of an instance with a volume attached.\n- Fixes _cleanup_rbd code to capture ImageBusy exception.\n- Don't try to confine a non-NUMA instance.\n- Include blank volumes in the block device mapping (bsc#945923)\n- Delete orphaned instance files from compute nodes (bsc#944178, CVE-2015-3280)\n\nopenstack-neutron:\n\n- Fix usage_audit to work with ML2.\n- Fix UDP offloading issue with virtio VMs. (bsc#948704)\n- Fix ipset can't be destroyed when last rule is deleted.\n- Add ARP spoofing protection for LinuxBridge agent.\n- Don't use ARP responder for IPv6 addresses in ovs.\n- Stop device_owner from being set to 'network:*'. (bsc#943648, CVE-2015-5240)\n- NSX-mh: use router_distributed flag.\n- NSX-mh: Failover controller connections on socket failures.\n- NSX-mh: Prevent failures on router delete.\n","status":"published","published":"2015-12-07T14:44:50Z","modified":"2026-02-04T02:49:54.744173Z","updated_at":"2026-11-02T15:53:43.030986Z"}]}}