CVE-2017-15130

Source
Severity Medium
Remote Yes
Type Denial of service
Description
A denial of service flaw was found in dovecot before 2.2.34 and 2.3.0.1. An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage, causing imap-login/pop3-login VSZ limit to be reached and the process restarted. This happens only if Dovecot config has local_name { } or local { } configuration blocks and attacker uses randomly generated SNI servernames.
Group Package Affected Fixed Severity Status Ticket
AVG-645 dovecot 2.3.0-2 2.3.0.1-1 High Fixed
Date Advisory Group Package Severity Description
06 Mar 2018 ASA-201803-7 AVG-645 dovecot High multiple issues
References
https://www.dovecot.org/list/dovecot-news/2018-February/000370.html