{"id":"CVE-2017-7520","details":"OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.","modified":"2026-03-20T11:21:55.126422Z","published":"2017-06-27T13:29:00.210Z","related":["MGASA-2017-0224","SUSE-SU-2017:1635-1","SUSE-SU-2017:1718-1"],"references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1038768"},{"type":"ADVISORY","url":"https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3900"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/99230"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openvpn/openvpn","events":[{"introduced":"0"},{"last_affected":"d044e188fb5669fed380c14473ef1045c88f9e80"},{"introduced":"0"},{"last_affected":"307abe7b32e951ece58c7964b3fa72536aee6724"},{"introduced":"0"},{"last_affected":"bb9d4c91c95f245dea87735e4e05661e04931b33"},{"introduced":"0"},{"last_affected":"85161685f42f2d8c69604e0825e75fe1287e57bd"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.3.16"},{"introduced":"0"},{"last_affected":"2.4.0"},{"introduced":"0"},{"last_affected":"2.4.1"},{"introduced":"0"},{"last_affected":"2.4.2"}]}}],"versions":["contains","v2.1.0","v2.1.1","v2.1.2","v2.1.3","v2.1_rc1","v2.1_rc10","v2.1_rc11","v2.1_rc12","v2.1_rc13","v2.1_rc14","v2.1_rc15","v2.1_rc16","v2.1_rc17","v2.1_rc18","v2.1_rc19","v2.1_rc2","v2.1_rc20","v2.1_rc21","v2.1_rc22","v2.1_rc3","v2.1_rc4","v2.1_rc5","v2.1_rc6","v2.1_rc7","v2.1_rc8","v2.1_rc9","v2.2-RC","v2.2-RC2","v2.2-beta4","v2.2-beta5","v2.3-alpha1","v2.3.0","v2.3.1","v2.3.10","v2.3.11","v2.3.12","v2.3.13","v2.3.14","v2.3.15","v2.3.16","v2.3.2","v2.3.3","v2.3.4","v2.3.5","v2.3.6","v2.3.7","v2.3.8","v2.3.9","v2.3_alpha2","v2.3_alpha3","v2.3_beta1","v2.3_rc1","v2.3_rc2","v2.4.0","v2.4_alpha1","v2.4_alpha2","v2.4_beta1","v2.4_beta2","v2.4_rc1","v2.4_rc2"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"2.4.0-alpha2"}]},{"events":[{"introduced":"0"},{"last_affected":"2.4.0-beta1"}]},{"events":[{"introduced":"0"},{"last_affected":"2.4.0-beta2"}]},{"events":[{"introduced":"0"},{"last_affected":"2.4.0-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"2.4.0-rc2"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-7520.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}