The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.Referenceshttp://www.openwall.com/lists/oss-security/2015/04/28/4https://dovecot.org/pipermail/dovecot/2015-April/100618.htmlhttps://dovecot.org/pipermail/dovecot-news/2015-May/000292.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1216057http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.htmlhttp://www.openwall.com/lists/oss-security/2015/04/27/1http://www.securityfocus.com/bid/74335
