Double free vulnerability in the ssh_packet_kexinit function in kex.c in libssh 0.5.x and 0.6.x before 0.6.4 allows remote attackers to cause a denial of service via a crafted kexinit packet.
https://security.gentoo.org/glsa/201606-12
https://bugzilla.redhat.com/show_bug.cgi?id=1158089
http://www.ubuntu.com/usn/USN-2478-1
http://www.mandriva.com/security/advisories?name=MDVSA-2015:020
http://www.libssh.org/2014/12/19/libssh-0-6-4-security-and-bugfix-release/
http://www.debian.org/security/2016/dsa-3488
http://secunia.com/advisories/60838
http://lists.opensuse.org/opensuse-updates/2015-01/msg00007.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147464.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147452.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147367.html