{"id":"UBUNTU-CVE-2019-19722","details":"In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.","modified":"2025-07-16T07:19:07.151893Z","published":"2019-12-13T10:00:00Z","withdrawn":"2025-07-18T16:45:32Z","upstream":["CVE-2019-19722"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19722"},{"type":"REPORT","url":"https://github.com/dovecot/core/commit/393a8cabf4dad893bf2ec60bf96cfde7a0c58432"},{"type":"REPORT","url":"https://github.com/dovecot/core/commit/1307766b6f5d97341a47376657d342bcefd10f1b"},{"type":"REPORT","url":"https://github.com/dovecot/core/commit/82c948db496cdc2d25b40eb8613c1eaa5c622384"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-19722"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.12?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.22-1ubuntu2.12"}]}],"versions":["1:2.2.18-2ubuntu2","1:2.2.22-1ubuntu1","1:2.2.22-1ubuntu2","1:2.2.22-1ubuntu2.1","1:2.2.22-1ubuntu2.2","1:2.2.22-1ubuntu2.3","1:2.2.22-1ubuntu2.4","1:2.2.22-1ubuntu2.6","1:2.2.22-1ubuntu2.7","1:2.2.22-1ubuntu2.8","1:2.2.22-1ubuntu2.9","1:2.2.22-1ubuntu2.10","1:2.2.22-1ubuntu2.11"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-core"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-core-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-dbg"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-dev"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-dev-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-gssapi"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-gssapi-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-imapd"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-imapd-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-ldap"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-ldap-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-lmtpd"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-lmtpd-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-lucene"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-lucene-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-managesieved"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-managesieved-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-mysql"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-mysql-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-pgsql"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-pgsql-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-pop3d"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-pop3d-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-sieve"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-sieve-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-solr"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-solr-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"dovecot-sqlite-dbgsym"},{"binary_version":"1:2.2.22-1ubuntu2.12","binary_name":"mail-stack-delivery"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19722.json"}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.33.2-1ubuntu4.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.33.2-1ubuntu4.5"}]}],"versions":["1:2.2.27-3ubuntu1","1:2.2.33.2-1ubuntu1","1:2.2.33.2-1ubuntu2","1:2.2.33.2-1ubuntu3","1:2.2.33.2-1ubuntu4","1:2.2.33.2-1ubuntu4.1","1:2.2.33.2-1ubuntu4.2","1:2.2.33.2-1ubuntu4.3","1:2.2.33.2-1ubuntu4.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-core"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-core-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-dev"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-gssapi"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-gssapi-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-imapd"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-imapd-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-ldap"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-ldap-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-lmtpd"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-lmtpd-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-managesieved"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-managesieved-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-mysql"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-mysql-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-pgsql"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-pgsql-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-pop3d"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-pop3d-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-sieve"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-sieve-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-solr"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-solr-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"dovecot-sqlite-dbgsym"},{"binary_version":"1:2.2.33.2-1ubuntu4.5","binary_name":"mail-stack-delivery"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19722.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:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}