{"id":"UBUNTU-CVE-2019-18928","details":"Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.","modified":"2026-04-22T12:14:50.622914Z","published":"2019-11-15T04:15:00Z","related":["USN-7224-1"],"upstream":["CVE-2019-18928"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18928"},{"type":"REPORT","url":"https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.14.html"},{"type":"REPORT","url":"https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.12.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-18928"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7224-1"}],"affected":[{"package":{"name":"cyrus-imapd","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/cyrus-imapd@2.5.10-3ubuntu1.1+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.10-3ubuntu1.1+esm1"}]}],"versions":["2.5.10-3build1","2.5.10-3build2","2.5.10-3ubuntu1","2.5.10-3ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"cyrus-admin","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-caldav","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-clients","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-common","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-imapd","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-murder","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-nntpd","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-pop3d","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"cyrus-replication","binary_version":"2.5.10-3ubuntu1.1+esm1"},{"binary_name":"libcyrus-imap-perl","binary_version":"2.5.10-3ubuntu1.1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18928.json"}},{"package":{"name":"cyrus-imapd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/cyrus-imapd@3.0.12-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.12-1"}]}],"versions":["3.0.11-1","3.0.11-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"cyrus-admin","binary_version":"3.0.12-1"},{"binary_name":"cyrus-caldav","binary_version":"3.0.12-1"},{"binary_name":"cyrus-clients","binary_version":"3.0.12-1"},{"binary_name":"cyrus-common","binary_version":"3.0.12-1"},{"binary_name":"cyrus-imapd","binary_version":"3.0.12-1"},{"binary_name":"cyrus-murder","binary_version":"3.0.12-1"},{"binary_name":"cyrus-nntpd","binary_version":"3.0.12-1"},{"binary_name":"cyrus-pop3d","binary_version":"3.0.12-1"},{"binary_name":"cyrus-replication","binary_version":"3.0.12-1"},{"binary_name":"libcyrus-imap-perl","binary_version":"3.0.12-1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18928.json"}}],"schema_version":"1.7.5","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"}]}