CVE-2006-4925
packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.
Date published : 2006-09-28
http://www.securityfocus.com/archive/1/447153/100/0/threaded
http://www.securityfocus.com/archive/1/447861/100/200/threaded