The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4 allows remote attackers to bypass SSH rules, cause a denial of service (crash), or possibly have unspecified other impact via a crafted banner, which triggers a large memory allocation or an out-of-bounds write.
https://exchange.xforce.ibmcloud.com/vulnerabilities/96157
http://www.securityfocus.com/bid/70083
http://www.securityfocus.com/archive/1/533515/100/0/threaded
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139821.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139630.html