{"id":"CVE-2017-7478","details":"OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.","modified":"2026-10-24T10:30:51.305920224Z","published":"2017-05-15T18:29:00.293Z","related":["SUSE-SU-2017:1622-1","SUSE-SU-2017:1718-1","SUSE-SU-2017:2838-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"source":"CPE_STRING","range":[{"introduced":"2.3.12"},{"last_affected":"2.3.12"},{"introduced":"2.3.13"},{"last_affected":"2.3.13"},{"introduced":"2.3.14"},{"last_affected":"2.3.14"},{"introduced":"2.4.0"},{"last_affected":"2.4.0"},{"introduced":"2.4.0-alpha2"},{"last_affected":"2.4.0-alpha2"},{"introduced":"2.4.0-alpha2"},{"last_affected":"2.4.0-alpha2"},{"introduced":"2.4.0-beta1"},{"last_affected":"2.4.0-beta1"},{"introduced":"2.4.0-beta1"},{"last_affected":"2.4.0-beta1"},{"introduced":"2.4.0-beta2"},{"last_affected":"2.4.0-beta2"},{"introduced":"2.4.0-beta2"},{"last_affected":"2.4.0-beta2"},{"introduced":"2.4.0-rc1"},{"last_affected":"2.4.0-rc1"},{"introduced":"2.4.0-rc1"},{"last_affected":"2.4.0-rc1"},{"introduced":"2.4.0-rc2"},{"last_affected":"2.4.0-rc2"},{"introduced":"2.4.0-rc2"},{"last_affected":"2.4.0-rc2"},{"introduced":"2.4.1"},{"last_affected":"2.4.1"}]}],"vendor_product":"openvpn:openvpn","cpes":["cpe:2.3:a:openvpn:openvpn:2.3.12:*:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.3.13:*:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.3.14:*:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:*","cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/98444"},{"type":"WEB","url":"http://www.securitytracker.com/id/1038473"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/41993/"},{"type":"ADVISORY","url":"https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openvpn/openvpn","events":[{"introduced":"8990b218fa9db71714ac42b0095c594e19861320"},{"last_affected":"bb9d4c91c95f245dea87735e4e05661e04931b33"}],"database_specific":{"extracted_events":[{"source":"CPE_STRING","cpe":"cpe:2.3:a:openvpn:openvpn:2.3.12:*:*:*:*:*:*:*","range":[{"introduced":"2.3.12"},{"last_affected":"2.3.12"}]},{"source":"CPE_STRING","cpe":"cpe:2.3:a:openvpn:openvpn:2.3.13:*:*:*:*:*:*:*","range":[{"introduced":"2.3.13"},{"last_affected":"2.3.13"}]},{"cpe":"cpe:2.3:a:openvpn:openvpn:2.3.14:*:*:*:*:*:*:*","range":[{"introduced":"2.3.14"},{"last_affected":"2.3.14"}],"source":"CPE_STRING"},{"range":[{"introduced":"2.4.0"},{"last_affected":"2.4.0"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:*"},{"source":"CPE_STRING","cpe":"cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*","range":[{"introduced":"2.4.1"},{"last_affected":"2.4.1"}]}]}}],"versions":["2.3.12","2.3.13","2.3.14","2.4.0","2.4.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7478.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}