{"id":"USN-4933-1","summary":"openvpn vulnerabilities","details":"It was discovered that OpenVPN incorrectly handled certain data channel v2\npackets. A remote attacker could possibly use this issue to inject packets\nusing a victim's peer-id. This issue only affected Ubuntu 18.04 LTS and\nUbuntu 20.04 LTS. (CVE-2020-11810)\n\nIt was discovered that OpenVPN incorrectly handled deferred authentication.\nWhen a server is configured to use deferred authentication, a remote\nattacker could possibly use this issue to bypass authentication and access\ncontrol channel data. (CVE-2020-15078)\n","modified":"2026-02-10T04:42:09Z","published":"2021-05-04T11:59:09Z","related":["UBUNTU-CVE-2020-11810","UBUNTU-CVE-2020-15078"],"upstream":["CVE-2020-11810","CVE-2020-15078","UBUNTU-CVE-2020-11810","UBUNTU-CVE-2020-15078"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4933-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11810"},{"type":"REPORT","url":"https://ubuntu.com/security/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":{"binaries":[{"binary_name":"openvpn","binary_version":"2.4.4-2ubuntu1.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4933-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2020-11810"},{"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"}],"id":"CVE-2020-15078"}]}}},{"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/usn/USN-4933-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2020-11810"},{"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"}],"id":"CVE-2020-15078"}]}}}],"schema_version":"1.7.3"}