{"id":"UBUNTU-CVE-2021-36370","details":"An issue was discovered in Midnight Commander through 4.8.26. When establishing an SFTP connection, the fingerprint of the server is neither checked nor displayed. As a result, a user connects to the server without the ability to verify its authenticity.","modified":"2026-02-04T03:11:24.953368Z","published":"2021-08-30T19:15:00Z","related":["USN-5160-1"],"upstream":["CVE-2021-36370"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-36370"},{"type":"REPORT","url":"https://github.com/MidnightCommander/mc/commit/9235d3c232d13ad7f973346077c9cf2eaa77dc5f"},{"type":"REPORT","url":"https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.c"},{"type":"REPORT","url":"https://github.com/MidnightCommander/mc/blob/5c1d3c55dd15356ec7d079084d904b7b0fd58d3e/src/vfs/sftpfs/connection.c#L484"},{"type":"REPORT","url":"https://sourceforge.net/projects/mcwin32/files/"},{"type":"REPORT","url":"https://midnight-commander.org/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5160-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-36370"}],"affected":[{"package":{"name":"mc","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/mc@3:4.8.11-1ubuntu0.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.8.11-1ubuntu0.1~esm1"}]}],"versions":["3:4.8.5-1","3:4.8.10-4","3:4.8.11-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"3:4.8.11-1ubuntu0.1~esm1","binary_name":"mc"},{"binary_name":"mc-data","binary_version":"3:4.8.11-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36370.json"}},{"package":{"name":"mc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/mc@3:4.8.15-2ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.8.15-2ubuntu0.1~esm1"}]}],"versions":["3:4.8.13-3","3:4.8.15-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"mc","binary_version":"3:4.8.15-2ubuntu0.1~esm1"},{"binary_name":"mc-data","binary_version":"3:4.8.15-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36370.json"}},{"package":{"name":"mc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mc@3:4.8.19-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.8.19-1ubuntu0.1~esm1"}]}],"versions":["3:4.8.19-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"mc","binary_version":"3:4.8.19-1ubuntu0.1~esm1"},{"binary_name":"mc-data","binary_version":"3:4.8.19-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36370.json"}},{"package":{"name":"mc","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/mc@3:4.8.24-2ubuntu1+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.8.24-2ubuntu1+esm1"}]}],"versions":["3:4.8.22-1build1","3:4.8.23-1","3:4.8.24-2ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"mc","binary_version":"3:4.8.24-2ubuntu1+esm1"},{"binary_name":"mc-data","binary_version":"3:4.8.24-2ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36370.json"}},{"package":{"name":"mc","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mc@3:4.8.27-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.8.27-1"}]}],"versions":["3:4.8.26-1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"mc","binary_version":"3:4.8.27-1"},{"binary_name":"mc-data","binary_version":"3:4.8.27-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36370.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:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}