{"id":"UBUNTU-CVE-2019-19783","details":"An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.","modified":"2026-04-22T12:16:27.191521Z","published":"2019-12-16T14:15:00Z","related":["USN-4566-1"],"upstream":["CVE-2019-19783"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19783"},{"type":"REPORT","url":"https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html#security-fixes"},{"type":"REPORT","url":"https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html"},{"type":"REPORT","url":"https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-19783"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4566-1"}],"affected":[{"package":{"name":"cyrus-imapd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/cyrus-imapd@2.5.10-3ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.10-3ubuntu1.1"}]}],"versions":["2.5.10-3build1","2.5.10-3build2","2.5.10-3ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"cyrus-admin","binary_version":"2.5.10-3ubuntu1.1"},{"binary_name":"cyrus-caldav","binary_version":"2.5.10-3ubuntu1.1"},{"binary_name":"cyrus-clients","binary_version":"2.5.10-3ubuntu1.1"},{"binary_name":"cyrus-common","binary_version":"2.5.10-3ubuntu1.1"},{"binary_name":"cyrus-imapd","binary_version":"2.5.10-3ubuntu1.1"},{"binary_name":"cyrus-murder","binary_version":"2.5.10-3ubuntu1.1"},{"binary_version":"2.5.10-3ubuntu1.1","binary_name":"cyrus-nntpd"},{"binary_name":"cyrus-pop3d","binary_version":"2.5.10-3ubuntu1.1"},{"binary_version":"2.5.10-3ubuntu1.1","binary_name":"cyrus-replication"},{"binary_name":"libcyrus-imap-perl","binary_version":"2.5.10-3ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19783.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}