Provide references for CVE-2017-18343.
Where can I find more information about CVE-2017-18343?
References are available at: https://github.com/symfony/symfony/pull/23684, https://github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985c, https://github.com/symfony/symfony/issues/27987, https://github.com/barryvdh/laravel-debugbar/issues/850.