{"id":"UBUNTU-CVE-2020-8793","details":"OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.","modified":"2026-02-04T04:29:55.829815Z","published":"2020-02-25T17:15:00Z","related":["USN-4294-1","USN-4875-1"],"upstream":["CVE-2020-8793"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8793"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4294-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4875-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-8793"}],"affected":[{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd@5.4.1p1-1ubuntu0.1~esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.3p1-4","5.4.1p1-1","5.4.1p1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.1p1-1ubuntu0.1~esm1","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8793.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd@5.7.3p2-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.3p2-1ubuntu0.1~esm2"}]}],"versions":["5.4.2p1-4","5.7.3p1-1","5.7.3p2-1","5.7.3p2-1ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"5.7.3p2-1ubuntu0.1~esm2","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8793.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd@6.0.3p1-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3p1-1ubuntu0.2"}]}],"versions":["6.0.2p1-2build1","6.0.3p1-1","6.0.3p1-1build1","6.0.3p1-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"6.0.3p1-1ubuntu0.2","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8793.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd@6.6.4p1-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.4p1-1"}]}],"versions":["6.0.3p1-6","6.0.3p1-6build1","6.6.1p1-1","6.6.1p1-3","6.6.1p1-4","6.6.1p1-5","6.6.2p1-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"6.6.4p1-1","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8793.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}