CVE-2016-0787
The diffie_hellman_sha256 function in kex.c in libssh2 before 1.7.0 improperly truncates secrets to 128 or 256 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
Date published : 2016-04-13
http://www.securityfocus.com/bid/82514
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html