require 'benchmark'
require 'rubygems'
valid = Benchmark.measure do
Gem::Version.new '1.22.333.4444.55555.666666.7777777'
end
puts 'Valid version time:'
puts valid
invalid = Benchmark.measure do
begin
Gem::Version.new '1.22.333.4444.55555.666666.7777777.'
rescue
end
end
puts 'Invalid version time:'
puts invalid
n = (valid.real - invalid.real).abs
if 0.1 < n then
puts 'You are vulnerable to CVE-2013-4287.'
exit(1)
else
puts 'You are NOT vulnerable to CVE-2013-4287.'
end