{"id":"UBUNTU-CVE-2016-9920","details":"steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.","modified":"2026-03-31T18:00:04.132657Z","published":"2016-12-08T18:59:00Z","related":["USN-8132-1"],"upstream":["CVE-2016-9920"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9920"},{"type":"REPORT","url":"https://blog.ripstech.com/2016/roundcube-command-execution-via-email/"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/12/08/10"},{"type":"REPORT","url":"https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-9920"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8132-1"}],"affected":[{"package":{"name":"roundcube","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/roundcube@1.2~beta+dfsg.1-0ubuntu1+esm7?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2~beta+dfsg.1-0ubuntu1+esm7"}]}],"versions":["1.1.1+dfsg.1-2","1.1.2+dfsg.1-5","1.1.3+dfsg.1-1","1.1.4+dfsg.1-1","1.2~beta+dfsg.1-0ubuntu1","1.2~beta+dfsg.1-0ubuntu1+esm1","1.2~beta+dfsg.1-0ubuntu1+esm2","1.2~beta+dfsg.1-0ubuntu1+esm3","1.2~beta+dfsg.1-0ubuntu1+esm4","1.2~beta+dfsg.1-0ubuntu1+esm5","1.2~beta+dfsg.1-0ubuntu1+esm6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube-core"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube-mysql"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube-pgsql"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube-plugins"},{"binary_version":"1.2~beta+dfsg.1-0ubuntu1+esm7","binary_name":"roundcube-sqlite3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-9920.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}