openssh security, bug fix, and enhancement update

7.4p1-16 + 0.10.3-2 - Fix for CVE-2017-15906 1517226 7.4p1-15 + 0.10.3-2 - Do not hang if SSH AuthorizedKeysCommand output is too large 1496467 - Do not segfault pamsshagentauth if keyfile is missing 1494268 - Do not segfault in audit code during cleanup 1488083 - Add WinSCP 5.10+ compatibility...