Doesn't look like 10.11.3 (released today) fix either of these OpenSSH vulnerabilities:
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-0777
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-0778
EA to identify computers that don't have the fix for /etc/ssh_config or /etc/ssh/ssh_config, hope Apple releases a fix before 10.11.4.
TIA,
Don