{"schema_version":"1.9.0","id":"CVE-2023-3966","published":"2024-02-22T12:15:53.128Z","modified":"2026-08-12T03:51:45.102429298Z","related":["SUSE-SU-2024:0738-1","SUSE-SU-2024:0738-2","SUSE-SU-2024:0912-1","SUSE-SU-2024:0922-1","SUSE-SU-2024:0937-1","SUSE-SU-2026:0280-1","SUSE-SU-2026:0290-1","SUSE-SU-2026:20049-1","SUSE-SU-2026:20061-1","openSUSE-SU-2024:13725-1"],"summary":"Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet","details":"A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openvswitch/ovs","events":[{"introduced":"0"},{"fixed":"3c2bea086ef8912d57331173af266f21d36740a0"}],"database_specific":{"cpe":"cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.1.0"}],"source":"CPE_RANGE"}}],"versions":["v1.1.0pre2","v1.1.0pre1","v1.0.1","v1.0.0","v0.99.2","v0.99.1","v0.99.0","v0.90.4","v0.90.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3966.json"}}],"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/"},{"type":"WEB","url":"https://packages.fedoraproject.org/"},{"type":"WEB","url":"https://repos.fedorapeople.org/repos/openstack/"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-3966"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3966.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3966"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2178363"}],"database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-248"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3966.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}