Check affected openssl versions for [CVE-2015-1793] http://openssl.org/news/secadv_20150709.txt

check.rb

#!/usr/bin/env ruby
# Usage: cat server_list.txt | ./check.rb
AFFECTED_VERSIONS = %r{
  1\.0\.2c|
  1\.0\.2b|
  1\.0\.1n|
  1\.0\.1o
}x
hosts = ARGF.read
hosts.each_line do |host|
 print "#{host.chomp!} "
 result = `ssh #{host} 'openssl version'`
 if result.match AFFECTED_VERSIONS
   puts "[ \033[31mAffected\033[0m ]"
 else
   puts "[ \033[32mSafe\033[0m ]"
 end
end