{"id":"UBUNTU-CVE-2020-15078","details":"OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.","modified":"2026-01-30T02:47:29.640803Z","published":"2021-04-26T14:15:00Z","related":["USN-4933-1"],"upstream":["CVE-2020-15078"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-15078"},{"type":"REPORT","url":"https://community.openvpn.net/openvpn/wiki/CVE-2020-15078"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4933-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-15078"}],"affected":[{"package":{"name":"openvpn","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openvpn@2.4.4-2ubuntu1.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.4-2ubuntu1.5"}]}],"versions":["2.4.3-4ubuntu1","2.4.4-1ubuntu1","2.4.4-2ubuntu1","2.4.4-2ubuntu1.1","2.4.4-2ubuntu1.2","2.4.4-2ubuntu1.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"openvpn","binary_version":"2.4.4-2ubuntu1.5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-15078.json"}},{"package":{"name":"openvpn","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/openvpn@2.4.7-1ubuntu2.20.04.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-1ubuntu2.20.04.2"}]}],"versions":["2.4.7-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"openvpn","binary_version":"2.4.7-1ubuntu2.20.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-15078.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}