Race condition in the PCNTL extension in PHP before 5.3.4, when a user-defined signal handler exists, might allow context-dependent attackers to cause a denial of service (memory corruption) via a large number of concurrent signals.Referenceshttp://bugs.php.net/52784https://exchange.xforce.ibmcloud.com/vulnerabilities/65431https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12271http://www.php.net/ChangeLog-5.php
