{"id":"CVE-2017-7543","state":"PUBLISHED","title":"A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overc","description":"A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.","publishedAt":"2018-07-26T14:00:00.000Z","updatedAt":"2024-08-05T16:04:11.998Z","severity":{"score":5.3,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"redhat"},"assigner":"redhat","products":["Red Hat openstack-neutron"],"affected":[{"vendor":"Red Hat","product":"openstack-neutron","versions":[{"version":"openstack-neutron-10.0.2-1.1","status":"affected"},{"version":"openstack-neutron-8.3.0-11.1","status":"affected"},{"version":"openstack-neutron-9.3.1-2.1","status":"affected"},{"version":"openstack-neutron-7.2.0-12.1","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543","https://access.redhat.com/errata/RHSA-2017:2447","https://access.redhat.com/errata/RHSA-2017:2451","https://access.redhat.com/errata/RHSA-2017:2450","https://access.redhat.com/errata/RHSA-2017:2448","http://www.securityfocus.com/bid/100237","https://access.redhat.com/errata/RHSA-2017:2452","https://access.redhat.com/errata/RHSA-2017:2449"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T19:43:54.997Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2017/7xxx/CVE-2017-7543.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2017-7543","state":"PUBLISHED","datePublished":"2018-07-26T14:00:00.000Z","dateUpdated":"2024-08-05T16:04:11.998Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2017-04-05T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources."}],"affected":[{"vendor":"Red Hat","product":"openstack-neutron","versions":[{"version":"openstack-neutron-10.0.2-1.1","status":"affected"},{"version":"openstack-neutron-8.3.0-11.1","status":"affected"},{"version":"openstack-neutron-9.3.1-2.1","status":"affected"},{"version":"openstack-neutron-7.2.0-12.1","status":"affected"}]}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543","tags":["x_refsource_CONFIRM"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2447","name":"RHSA-2017:2447","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2451","name":"RHSA-2017:2451","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2450","name":"RHSA-2017:2450","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2448","name":"RHSA-2017:2448","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"http://www.securityfocus.com/bid/100237","name":"100237","tags":["vdb-entry","x_refsource_BID"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2452","name":"RHSA-2017:2452","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2449","name":"RHSA-2017:2449","tags":["vendor-advisory","x_refsource_REDHAT"]}],"metrics":[{"cvssV3_0":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","description":"CWE-362","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","dateUpdated":"2018-07-27T09:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749"},"datePublic":"2017-07-21T00:00:00.000Z"},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2447","name":"RHSA-2017:2447","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2451","name":"RHSA-2017:2451","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2450","name":"RHSA-2017:2450","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2448","name":"RHSA-2017:2448","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://www.securityfocus.com/bid/100237","name":"100237","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2452","name":"RHSA-2017:2452","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2017:2449","name":"RHSA-2017:2449","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T16:04:11.998Z"}}]}}}