{"id":"CVE-2023-1668","aliases":["ALPINE-CVE-2023-1668","AZL-26031","AZL-35088","DEBIAN-CVE-2023-1668","DLA-3410-1","DSA-5387-1","EUVD-2023-23896","GHSA-w6wj-g5cv-fh4w","OESA-2023-1234","RHSA-2023:1765","RHSA-2023:1766","RHSA-2023:1769","RHSA-2023:1770","RHSA-2023:1823","RHSA-2023:1824","RHSA-2023:3491","SUSE-SU-2023:2274-1","SUSE-SU-2023:2275-1","SUSE-SU-2023:2296-1","SUSE-SU-2023:2536-1","SUSE-SU-2023:2621-1","SUSE-SU-2026:0280-1","SUSE-SU-2026:0290-1","UBUNTU-CVE-2023-1668","USN-6068-1","openSUSE-SU-2024:12942-1"],"status":"published","title":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will...","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01216,"percentile":0.68797,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-670"],"published":"2023-04-10T00:00:00Z","modified":"2026-11-03T06:32:42Z","fixes":[{"ecosystem":"Alpine:v3.18","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"openvswitch","fixed_in":["2.17.6-r0","2.17.8-r0"],"sources":["osv"]},{"ecosystem":"Azure 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flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T00:00:00Z","modified":"2025-04-23T16:22:48.998Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T14:35:32.376766Z"}],"euvd":[{"id":"EUVD-2023-23896","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T00:00:00Z","modified":"2025-04-23T16:22:48Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:12.74685Z"}],"ghsa":[{"id":"GHSA-w6wj-g5cv-fh4w","title":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will...","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. 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This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T22:15:09.133Z","modified":"2026-11-03T06:32:42.305812818Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:17:02.90744Z"},{"id":"AZL-26031","title":"CVE-2023-1668 affecting package openvswitch for versions less than 2.17.5-2","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T22:15:09Z","modified":"2026-04-21T04:23:26.950022Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-35088","title":"CVE-2023-1668 affecting package openvswitch for versions less than 2.17.5-3","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. 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This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T00:00:00Z","modified":"2026-10-28T02:30:36.759131709Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T15:44:30.334753Z"},{"id":"DEBIAN-CVE-2023-1668","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T22:15:09.133Z","modified":"2026-10-26T18:00:24.260493452Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:39.369204Z"},{"id":"OESA-2023-1234","title":"openvswitch security update","description":"Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.(CVE-2023-1668)","status":"published","published":"2023-04-21T11:05:42Z","modified":"2026-08-18T01:17:41.364202578Z","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":"2026-11-02T15:52:39.934788Z"},{"id":"RHSA-2023:1765","title":"Red Hat Security Advisory: openvswitch2.17 security update","status":"published","published":"2024-09-13T21:10:47Z","modified":"2026-06-29T10:47:09Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:1766","title":"Red Hat Security Advisory: openvswitch3.1 security update","status":"published","published":"2024-09-13T21:09:35Z","modified":"2026-06-29T10:47:09Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:1769","title":"Red Hat Security Advisory: openvswitch2.17 security update","status":"published","published":"2024-09-13T21:09:26Z","modified":"2026-06-29T10:47:10Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:1770","title":"Red Hat Security Advisory: openvswitch3.1 security update","status":"published","published":"2024-09-13T21:09:44Z","modified":"2026-06-29T10:47:10Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:1823","title":"Red Hat Security Advisory: openvswitch2.13 security update","status":"published","published":"2024-09-13T21:10:04Z","modified":"2026-06-29T10:47:11Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:1824","title":"Red Hat Security Advisory: openvswitch2.15 security update","status":"published","published":"2024-09-13T21:10:15Z","modified":"2026-06-29T10:47:12Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:3491","title":"Red Hat Security Advisory: Red Hat Virtualization Host 4.4.z SP 1 security update","status":"published","published":"2024-09-16T10:01:31Z","modified":"2026-09-30T10:02:18Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:11.154197Z"},{"id":"UBUNTU-CVE-2023-1668","description":"A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.","status":"published","published":"2023-04-10T22:15:00Z","modified":"2026-02-04T04:22:12.726101Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:18.756095Z"},{"id":"DLA-3410-1","title":"openvswitch - security update","status":"published","published":"2023-05-01T00:00:00Z","modified":"2026-03-09T01:23:26.129719Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DSA-5387-1","title":"openvswitch - security update","status":"published","published":"2023-04-13T00:00:00Z","modified":"2026-03-09T02:09:44.237256Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"openSUSE-SU-2024:12942-1","title":"libopenvswitch-3_1-0-3.1.0-14.1 on GA media","description":"These are all security issues fixed in the libopenvswitch-3_1-0-3.1.0-14.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:35:17.258049Z","updated_at":"2026-11-02T16:58:36.025801Z"},{"id":"SUSE-SU-2023:2274-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-1668: Fixed remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054).\n- CVE-2022-4338: Fixed Integer Underflow in Organization Specific TLV (bsc#1206580).\n- CVE-2022-4337: Fixed Out-of-Bounds Read in Organization Specific TLV (bsc#1206581).\n","status":"published","published":"2023-05-23T13:44:30Z","modified":"2026-02-04T03:40:16.134411Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2275-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-1668: Fixed remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054).\n- CVE-2022-4338: Fixed Integer Underflow in Organization Specific TLV (bsc#1206580).\n- CVE-2022-4337: Fixed Out-of-Bounds Read in Organization Specific TLV (bsc#1206581).\n","status":"published","published":"2023-05-23T15:42:28Z","modified":"2026-02-04T02:34:05.085705Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2296-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-1668: Fixed remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054).\n","status":"published","published":"2023-05-25T08:07:17Z","modified":"2026-02-04T03:43:09.453106Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2536-1","title":"Security update for openvswitch3","description":"This update for openvswitch3 fixes the following issues:\n\n- CVE-2023-1668: Fixed a remote denial of service that could be\n  triggered via malformed IP packets (bsc#1210054).\n","status":"published","published":"2023-06-19T07:52:23Z","modified":"2026-02-04T03:55:51.736408Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2621-1","title":"Security update for openvswitch","description":"This update for openvswitch fixes the following issues:\n\n- CVE-2023-1668: Fixed remote traffic denial-of-service via crafted packets with IP proto 0 (bsc#1210054).\n","status":"published","published":"2023-06-23T11:41:54Z","modified":"2026-02-04T04:39:33.467659Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"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":"USN-6068-1","title":"openvswitch vulnerability","description":"David Marchand discovered that Open vSwitch incorrectly handled IP packets\nwith the protocol set to 0. A remote attacker could possibly use this issue\nto cause a denial of service.\n","status":"published","published":"2023-05-10T11:37:14Z","modified":"2026-04-27T16:40:31.452681Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}