{"id":"CVE-2023-5366","aliases":["ALPINE-CVE-2023-5366","AZL-31280","AZL-35087","DEBIAN-CVE-2023-5366","DLA-3734-1","DSA-5640-1","EUVD-2023-57682","GHSA-f89w-2cg8-8h78","OESA-2023-1732","RHBA-2024:1226","RHBA-2024:1228","RHSA-2024:1227","RHSA-2024:1234","RHSA-2024:1235","SUSE-SU-2023:4508-1","SUSE-SU-2023:4571-1","SUSE-SU-2023:4573-1","SUSE-SU-2023:4657-1","SUSE-SU-2023:4661-1","SUSE-SU-2023:4666-1","SUSE-SU-2023:4714-1","SUSE-SU-2026:0280-1","SUSE-SU-2026:0290-1","SUSE-SU-2026:20049-1","SUSE-SU-2026:20061-1","UBUNTU-CVE-2023-5366","USN-6514-1","USN-6690-1","openSUSE-SU-2024:13657-1"],"status":"published","title":"Openvswitch don't match packets on nd_target field","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00416,"percentile":0.36201,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-345"],"published":"2023-10-06T17:43:34Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Alpine:v3.19","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"openvswitch","fixed_in":["2.17.9-r0"],"sources":["osv"]},{"ecosystem":"Azure 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Advisory","fix","report"]},{"url":"http://www.openwall.com/lists/oss-security/2024/02/08/4","tags":["x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/02/msg00004.html","tags":["x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/","tags":["x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5366","tags":["web","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3"},{"url":"https://github.com/advisories/GHSA-f89w-2cg8-8h78"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-5366","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-5366","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1732","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHBA-2024:1226","tags":["advisory"]},{"url":"https://issues.redhat.com/browse/FDP-309","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhba-2024_1226.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-5366","tags":["advisory","report"]},{"url":"https://mail.openvswitch.org/pipermail/ovs-announce/2024-February/000342.html","tags":["article","report"]},{"url":"https://access.redhat.com/errata/RHBA-2024:1228","tags":["advisory"]},{"url":"https://issues.redhat.com/browse/FDP-312","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhba-2024_1228.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2024:1227","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2178363","tags":["report"]},{"url":"https://issues.redhat.com/browse/FD-3269","tags":["article"]},{"url":"https://issues.redhat.com/browse/FDP-311","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1227.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2023-3966","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-3966","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3966","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2024:1234","tags":["advisory"]},{"url":"https://issues.redhat.com/browse/FD-3267","tags":["article"]},{"url":"https://issues.redhat.com/browse/FDP-308","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1234.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2024:1235","tags":["advisory"]},{"url":"https://issues.redhat.com/browse/FD-3266","tags":["article"]},{"url":"https://issues.redhat.com/browse/FDP-310","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1235.json","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234508-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1216002","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-5366","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234571-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234573-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234657-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234661-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234666-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234714-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20260280-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1210054","tags":["report"]},{"url":"https://bugzilla.suse.com/1212125","tags":["report"]},{"url":"https://bugzilla.suse.com/1219465","tags":["report"]},{"url":"https://bugzilla.suse.com/1255435","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-1668","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-3152","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-3153","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-3966","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-2182","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-0650","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20260290-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202620049-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1236353","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202620061-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-5366","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6514-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-6690-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-3966","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-5366","title":"Openvswitch don't match packets on nd_target field","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T17:43:34.376Z","modified":"2025-02-13T17:20:09.786Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:35:16.771348Z"}],"euvd":[{"id":"EUVD-2023-57682","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T17:43:34Z","modified":"2025-02-13T17:20:09Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:03:48.029386Z"}],"ghsa":[{"id":"GHSA-f89w-2cg8-8h78","title":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between...","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:30:32Z","modified":"2024-03-23T03:30:24Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:55:43.067988Z"}],"nvd":[{"id":"CVE-2023-5366","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12.52Z","modified":"2026-06-17T06:48:26.07Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:08:36.656095Z"}],"osv":[{"id":"ALPINE-CVE-2023-5366","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12.52Z","modified":"2026-11-03T06:32:43.91526794Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T07:17:02.90744Z"},{"id":"AZL-31280","title":"CVE-2023-5366 affecting package openvswitch for versions less than 2.17.9-1","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12Z","modified":"2026-04-21T04:26:11.745732Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:03.46006Z"},{"id":"AZL-35087","title":"CVE-2023-5366 affecting package openvswitch for versions less than 3.3.0-1","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12Z","modified":"2026-11-05T05:40:51Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-05T16:41:19.554273Z"},{"id":"CVE-2023-5366","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12.52Z","modified":"2026-03-23T05:11:54.105431Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:36.491684Z"},{"id":"DEBIAN-CVE-2023-5366","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:12.52Z","modified":"2026-10-26T18:03:08.988925437Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:41.220655Z"},{"id":"OESA-2023-1732","title":"openvswitch security update","description":"Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.(CVE-2023-5366)","status":"published","published":"2023-10-13T11:06:10Z","modified":"2026-08-18T01:17:53.80358815Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:40.328856Z"},{"id":"RHBA-2024:1226","title":"Red Hat Bug Fix Advisory: openvswitch2.17 bug fix and enhancement update","status":"published","published":"2024-09-13T23:53:04Z","modified":"2026-06-29T10:53:13Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHBA-2024:1228","title":"Red Hat Bug Fix Advisory: openvswitch3.2 bug fix and enhancement update","status":"published","published":"2024-09-13T23:53:12Z","modified":"2026-06-29T10:53:13Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:58.636919Z"},{"id":"RHSA-2024:1227","title":"Red Hat Security Advisory: openvswitch3.1 security update","status":"published","published":"2024-09-13T23:55:51Z","modified":"2026-09-20T10:02:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"RHSA-2024:1234","title":"Red Hat Security Advisory: openvswitch2.17 security update","status":"published","published":"2024-09-13T23:55:33Z","modified":"2026-09-20T10:02:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"RHSA-2024:1235","title":"Red Hat Security Advisory: openvswitch3.1 security update","status":"published","published":"2024-09-13T23:55:42Z","modified":"2026-09-20T10:02:59Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:12.787505Z"},{"id":"UBUNTU-CVE-2023-5366","description":"A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.","status":"published","published":"2023-10-06T18:15:00Z","modified":"2026-02-04T03:28:47.667525Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:37.827858Z"},{"id":"DLA-3734-1","title":"openvswitch - security update","status":"published","published":"2024-02-17T00:00:00Z","modified":"2026-03-09T01:21:21.096041Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"DSA-5640-1","title":"openvswitch - security update","status":"published","published":"2024-03-14T00:00:00Z","modified":"2026-03-09T02:09:07.812756Z","updated_at":"2026-11-02T15:46:17.892347Z"},{"id":"openSUSE-SU-2024:13657-1","title":"libopenvswitch-3_1-0-3.1.0-18.1 on GA media","description":"These are all security issues fixed in the libopenvswitch-3_1-0-3.1.0-18.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:24:20.433667Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"SUSE-SU-2023:4508-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2023-11-21T12:34:42Z","modified":"2026-02-04T02:59:46.236879Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4571-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2023-11-27T08:25:38Z","modified":"2026-02-04T04:25:24.079752Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4573-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2023-11-27T08:28:09Z","modified":"2026-02-04T02:44:37.846381Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4657-1","title":"Security update for openvswitch3","description":"This update for openvswitch3 fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002).  \n","status":"published","published":"2023-12-06T12:03:55Z","modified":"2026-02-04T04:16:26.574942Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4661-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002). \n","status":"published","published":"2023-12-06T12:08:07Z","modified":"2026-02-04T03:34:12.387706Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4666-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2023-12-06T12:35:47Z","modified":"2026-02-04T03:40:41.525462Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4714-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-5366: Fixed missing masks on a final stage with ports trie (bsc#1216002). \n","status":"published","published":"2023-12-11T14:33:44Z","modified":"2026-02-04T03:27:50.27364Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2026:0280-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\nUpdate to v3.1.7:\n\n - CVE-2023-3966: openvswitch, openvswitch3: Invalid memory access in Geneve with HW offload (bsc#1219465).\n - CVE-2024-2182: openvswitch: ov: insufficient validation of incoming BFD packets may lead to denial of service (bsc#1255435).\n - CVE-2023-1668: openvswitch: remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054).\n - CVE-2023-3153: openvswitch,openvswitch3: service monitor MAC flow is not rate limited (bsc#1212125).\n - CVE-2023-5366: openvswitch: missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2026-01-23T15:33:56Z","modified":"2026-03-23T04:51:42.427758Z","updated_at":"2026-11-02T15:54:00.846737Z"},{"id":"SUSE-SU-2026:0290-1","title":"Security update for openvswitch3","description":"This update for openvswitch3 fixes the following issues:\n\nUpdate to v3.1.7:\n\n - CVE-2023-3966: openvswitch, openvswitch3: Invalid memory access in Geneve with HW offload (bsc#1219465).\n - CVE-2024-2182: openvswitch: ov: insufficient validation of incoming BFD packets may lead to denial of service (bsc#1255435).\n - CVE-2023-1668: openvswitch: remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054).\n - CVE-2023-3153: openvswitch,openvswitch3: service monitor MAC flow is not rate limited (bsc#1212125).\n - CVE-2023-5366: openvswitch: missing masks on a final stage with ports trie (bsc#1216002).\n","status":"published","published":"2026-01-26T10:34:13Z","modified":"2026-03-23T04:52:06.266664Z","updated_at":"2026-11-02T15:54:00.846737Z"},{"id":"SUSE-SU-2026:20049-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\nUpdate OpenvSwitch to v3.1.7 and OVN to v23.03.3.\n\nSecurity issues fixed:\n\n- CVE-2023-3966: ovs: invalid memory access and potential denial of service via specially crafted Geneve packets\n  (bsc#1219465).\n- CVE-2023-5366: ovs: OpenFlow rules may be bypassed via specially crafted ICMPv6 Neighbor Advertisement packets sent\n  between virtual machines t(bsc#1216002).\n- CVE-2024-2182: ovn: denial of service via injection of specially crafted BFD packets from inside unprivileged\n  workloads (bsc#1255435).\n- CVE-2025-0650: ovn: egress ACLs may be bypassed via specially crafted UDP packet (bsc#1236353).\n\nOther updates and bugfixes:\n\n- OpenvSwitch:\n  * https://www.openvswitch.org/releases/NEWS-3.1.7.txt\n  * v3.1.7\n    - Bug fixes\n    - OVS validated with DPDK 22.11.7.\n  * v3.1.6\n    - Bug fixes\n    - OVS validated with DPDK 22.11.6.\n  * v3.1.5\n    - Bug fixes\n    - OVS validated with DPDK 22.11.5.\n  * v3.1.4\n    - Bug fixes\n    - OVS validated with DPDK 22.11.4.\n- OVN:\n  * https://github.com/ovn-org/ovn/blob/branch-23.03/NEWS\n  * v23.03.3\n    - Bug fixes\n    - Add \"garp-max-timeout-sec\" config option to vswitchd external-ids to cap the time between when ovn-controller\n      sends gARP packets.\n  * v23.03.1\n    - Bug fixes\n    - CT entries are not flushed by default anymore whenever a load balancer backend is removed. A new, per-LB, option\n      'ct_flush' can be used to restore the previous behavior. Disabled by default.\n    - Always allow IPv6 Router Discovery, Neighbor Discovery, and Multicast Listener Discovery protocols, regardless of\n      ACLs defined.\n    - Send ICMP Fragmentation Needed packets back to offending ports when communicating with multichassis ports using\n      frames that don't fit through a tunnel. This is done only for logical switches that are attached to a physical\n      network via a localnet port, in which case multichassis ports may have an effective MTU different from regular\n      ports and hence may need this mechanism to maintain connectivity with other peers in the network.\n    - ECMP routes use L4_SYM dp-hash by default if the datapath supports it. Existing sessions might get re-hashed to a\n      different ECMP path when OVN detects the algorithm support in the datapath during an upgrade or restart of\n      ovn-controller.\n","status":"published","published":"2026-01-09T10:54:58Z","modified":"2026-03-23T04:52:31.998653Z","updated_at":"2026-11-02T15:54:01.610851Z"},{"id":"SUSE-SU-2026:20061-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\nUpdate OpenvSwitch to v3.1.7 and OVN to v23.03.3:\n\nSecurity issues fixed:\n\n- CVE-2023-3966: ovs: invalid memory access and potential denial of service via specially crafted Geneve packets\n  (bsc#1219465).\n- CVE-2023-5366: ovs: OpenFlow rules may be bypassed via specially crafted ICMPv6 Neighbor Advertisement packets sent\n  between virtual machines t(bsc#1216002).\n- CVE-2024-2182: ovn: denial of service via injection of specially crafted BFD packets from inside unprivileged\n  workloads (bsc#1255435).\n- CVE-2025-0650: ovn: egress ACLs may be bypassed via specially crafted UDP packet (bsc#1236353).\n\nOther updates and bugfixes:\n\n- OpenvSwitch upstream bugfix updates:\n  * https://www.openvswitch.org/releases/NEWS-3.1.7.txt\n  * v3.1.7\n    - Bug fixes\n    - OVS validated with DPDK 22.11.7.\n  * v3.1.6\n    - Bug fixes\n    - OVS validated with DPDK 22.11.6.\n  * v3.1.5\n    - Bug fixes\n    - OVS validated with DPDK 22.11.5.\n  * v3.1.4\n    - Bug fixes\n    - OVS validated with DPDK 22.11.4.\n  \n- OVN upstream bugfix updates:\n  * https://github.com/ovn-org/ovn/blob/branch-23.03/NEWS\n  * v23.03.3\n    - Bug fixes\n    - Add \"garp-max-timeout-sec\" config option to vswitchd external-ids to cap the time between when ovn-controller\n      sends gARP packets.\n  * v23.03.1\n    - Bug fixes\n    - CT entries are not flushed by default anymore whenever a load balancer backend is removed.  A new, per-LB, option\n      'ct_flush' can be used to restore the previous behavior. Disabled by default.\n    - Always allow IPv6 Router Discovery, Neighbor Discovery, and Multicast Listener Discovery protocols, regardless of\n      ACLs defined.\n    - Send ICMP Fragmentation Needed packets back to offending ports when communicating with multichassis ports using\n      frames that don't fit through a tunnel. This is done only for logical switches that are attached to a physical\n      network via a localnet port, in which case multichassis ports may have an effective MTU different from regular\n      ports and hence may need this mechanism to maintain connectivity with other peers in the network.\n    - ECMP routes use L4_SYM dp-hash by default if the datapath supports it. Existing sessions might get re-hashed to a\n      different ECMP path when OVN detects the algorithm support in the datapath during an upgrade or restart of\n      ovn-controller.\n","status":"published","published":"2026-01-08T14:43:50Z","modified":"2026-03-23T04:52:32.866694Z","updated_at":"2026-11-02T15:54:01.610851Z"},{"id":"USN-6514-1","title":"openvswitch vulnerability","description":"It was discovered that Open vSwitch did not correctly handle OpenFlow\nrules for ICMPv6 Neighbour Advertisement packets. A local attacker could\npossibly use this issue to redirect traffic to arbitrary IP addresses.\n","status":"published","published":"2023-11-26T23:54:45Z","modified":"2026-04-27T16:58:05.321811Z","updated_at":"2026-11-02T16:58:17.305935Z"},{"id":"USN-6690-1","title":"openvswitch vulnerabilities","description":"Timothy Redaelli and Haresh Khandelwal discovered that Open vSwitch\nincorrectly handled certain crafted Geneve packets when hardware offloading\nvia the netlink path is enabled. A remote attacker could possibly use this\nissue to cause Open vSwitch to crash, leading to a denial of service.\n(CVE-2023-3966)\n\nIt was discovered that Open vSwitch incorrectly handled certain ICMPv6\nNeighbor Advertisement packets. A remote attacker could possibly use this\nissue to redirect traffic to arbitrary IP addresses. (CVE-2023-5366)\n","status":"published","published":"2024-03-12T11:34:51Z","modified":"2026-04-27T17:17:22.42605516Z","updated_at":"2026-11-02T16:58:17.914523Z"}]}}