Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer overflow attacks, as demonstrated by the SSHredder SSH protocol test suite.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5848
https://exchange.xforce.ibmcloud.com/vulnerabilities/10870
http://www.securityfocus.com/bid/6407
http://www.cert.org/advisories/CA-2002-36.html
http://securitytracker.com/id?1005813
http://securitytracker.com/id?1005812
http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html