Use-after-free vulnerability in the CURLFile implementation in ext/curl/curl_file.c in PHP before 5.6.27 and 7.x before 7.0.12 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that is mishandled during __wakeup processing.
https://www.tenable.com/security/tns-2016-19
http://www.securityfocus.com/bid/93577
http://www.php.net/ChangeLog-7.php
http://www.php.net/ChangeLog-5.php
http://www.openwall.com/lists/oss-security/2016/11/01/2
http://www.debian.org/security/2016/dsa-3698
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=0e6fe3a4c96be2d3e88389a5776f878021b4c59f