Dovecot 1.1 before 2.2.13 and dovecot-ee before 2.1.7.7 and 2.2.x before 2.2.12.12 does not properly close old connections, which allows remote attackers to cause a denial of service (resource consumption) via an incomplete SSL/TLS handshake for an IMAP/POP3 connection.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_name": "dovecot-core", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-dbg", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-dev", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-gssapi", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-imapd", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-ldap", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-lmtpd", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-managesieved", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-mysql", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-pgsql", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-pop3d", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-sieve", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-solr", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "dovecot-sqlite", "binary_version": "1:2.2.9-1ubuntu2.1" }, { "binary_name": "mail-stack-delivery", "binary_version": "1:2.2.9-1ubuntu2.1" } ] }