{"id":"UBUNTU-CVE-2020-1946","details":"In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.","modified":"2026-02-04T02:52:01.238273Z","published":"2020-12-31T00:00:00Z","related":["USN-4899-1","USN-4899-2"],"upstream":["CVE-2020-1946"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-1946"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/03/24/3"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4899-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4899-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-1946"}],"affected":[{"package":{"name":"spamassassin","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/spamassassin@3.4.2-0ubuntu0.14.04.1+esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.2-0ubuntu0.14.04.1+esm3"}]}],"versions":["3.3.2-6ubuntu2","3.3.2-8ubuntu1","3.3.2-8ubuntu2","3.4.0-1","3.4.0-1ubuntu1","3.4.0-1ubuntu2","3.4.0-1ubuntu2.1","3.4.2-0ubuntu0.14.04.1","3.4.2-0ubuntu0.14.04.1+esm1","3.4.2-0ubuntu0.14.04.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.2-0ubuntu0.14.04.1+esm3","binary_name":"sa-compile"},{"binary_name":"spamassassin","binary_version":"3.4.2-0ubuntu0.14.04.1+esm3"},{"binary_name":"spamc","binary_version":"3.4.2-0ubuntu0.14.04.1+esm3"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1946.json"}},{"package":{"name":"spamassassin","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/spamassassin@3.4.2-0ubuntu0.16.04.5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.2-0ubuntu0.16.04.5"}]}],"versions":["3.4.1-1","3.4.1-2","3.4.1-3","3.4.2-0ubuntu0.16.04.1","3.4.2-0ubuntu0.16.04.2","3.4.2-0ubuntu0.16.04.3","3.4.2-0ubuntu0.16.04.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"sa-compile","binary_version":"3.4.2-0ubuntu0.16.04.5"},{"binary_name":"spamassassin","binary_version":"3.4.2-0ubuntu0.16.04.5"},{"binary_name":"spamc","binary_version":"3.4.2-0ubuntu0.16.04.5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1946.json"}},{"package":{"name":"spamassassin","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/spamassassin@3.4.2-0ubuntu0.18.04.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.2-0ubuntu0.18.04.5"}]}],"versions":["3.4.1-7","3.4.1-8","3.4.1-8build1","3.4.2-0ubuntu0.18.04.1","3.4.2-0ubuntu0.18.04.2","3.4.2-0ubuntu0.18.04.3","3.4.2-0ubuntu0.18.04.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"sa-compile","binary_version":"3.4.2-0ubuntu0.18.04.5"},{"binary_name":"spamassassin","binary_version":"3.4.2-0ubuntu0.18.04.5"},{"binary_name":"spamc","binary_version":"3.4.2-0ubuntu0.18.04.5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1946.json"}},{"package":{"name":"spamassassin","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/spamassassin@3.4.4-1ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.4-1ubuntu1.1"}]}],"versions":["3.4.2-1","3.4.2-2","3.4.3~rc6+1-1","3.4.3~rc7-1","3.4.3-1","3.4.4~rc1-1","3.4.4-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"sa-compile","binary_version":"3.4.4-1ubuntu1.1"},{"binary_version":"3.4.4-1ubuntu1.1","binary_name":"spamassassin"},{"binary_name":"spamc","binary_version":"3.4.4-1ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1946.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:H/A:H"},{"type":"Ubuntu","score":"medium"}]}