In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.Referenceshttp://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdfhttps://www.youtube.com/watch?v=LDcaPstAuPkhttps://bugs.php.net/bug.php?id=73092https://access.redhat.com/errata/RHSA-2018:1296https://security.netapp.com/advisory/ntap-20180112-0001/http://www.securityfocus.com/bid/95151http://www.securitytracker.com/id/1037659http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7
