{"id":"UBUNTU-CVE-2019-11500","details":"In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.","modified":"2026-04-22T12:06:38.065536Z","published":"2019-08-28T12:00:00Z","related":["USN-4110-1","USN-4110-2","USN-4110-3","USN-4110-4"],"upstream":["CVE-2019-11500"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11500"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4110-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4110-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4110-3"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4110-4"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-11500"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.9-1ubuntu2.6+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.9-1ubuntu2.6+esm1"}]}],"versions":["1:2.1.7-7ubuntu3","1:2.2.9-1ubuntu1","1:2.2.9-1ubuntu2","1:2.2.9-1ubuntu2.1","1:2.2.9-1ubuntu2.3","1:2.2.9-1ubuntu2.4","1:2.2.9-1ubuntu2.5","1:2.2.9-1ubuntu2.6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"dovecot-core","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-imapd","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-ldap","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-managesieved","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-mysql","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-pgsql","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-pop3d","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-sieve","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_name":"dovecot-solr","binary_version":"1:2.2.9-1ubuntu2.6+esm1"},{"binary_version":"1:2.2.9-1ubuntu2.6+esm1","binary_name":"dovecot-sqlite"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.2.9-1ubuntu2.6+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-11500.json"}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.11?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.22-1ubuntu2.11"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dovecot-core","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-imapd","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-ldap","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-lucene","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-managesieved","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-mysql","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-pgsql","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-pop3d","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-sieve","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-solr","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_name":"dovecot-sqlite","binary_version":"1:2.2.22-1ubuntu2.11"},{"binary_version":"1:2.2.22-1ubuntu2.11","binary_name":"mail-stack-delivery"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-11500.json"}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.33.2-1ubuntu4.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.33.2-1ubuntu4.4"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dovecot-core","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-imapd","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-ldap","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-managesieved","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-mysql","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_version":"1:2.2.33.2-1ubuntu4.4","binary_name":"dovecot-pgsql"},{"binary_name":"dovecot-pop3d","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-sieve","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-solr","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"dovecot-sqlite","binary_version":"1:2.2.33.2-1ubuntu4.4"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.2.33.2-1ubuntu4.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-11500.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}