{"id":"UBUNTU-CVE-2017-15130","details":"A denial of service flaw was found in dovecot before 2.2.34. An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage and the process to restart.","modified":"2026-04-22T11:17:45.243685Z","published":"2018-02-28T00:00:00Z","related":["USN-3587-1","USN-3587-2"],"upstream":["CVE-2017-15130"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-15130"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2018/03/01/3"},{"type":"REPORT","url":"https://www.dovecot.org/list/dovecot-news/2018-February/000370.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3587-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3587-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-15130"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.9-1ubuntu2.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.9-1ubuntu2.4"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dovecot-core","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-imapd","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-ldap","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_version":"1:2.2.9-1ubuntu2.4","binary_name":"dovecot-managesieved"},{"binary_name":"dovecot-mysql","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-pgsql","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-pop3d","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-sieve","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-solr","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"dovecot-sqlite","binary_version":"1:2.2.9-1ubuntu2.4"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.2.9-1ubuntu2.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15130.json"}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.7?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.22-1ubuntu2.7"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dovecot-core","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-imapd","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-ldap","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-lucene","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_version":"1:2.2.22-1ubuntu2.7","binary_name":"dovecot-managesieved"},{"binary_name":"dovecot-mysql","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-pgsql","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-pop3d","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-sieve","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-solr","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"dovecot-sqlite","binary_version":"1:2.2.22-1ubuntu2.7"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.2.22-1ubuntu2.7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15130.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}