CVE-2015-4603: php: exception:: getTraceAsString type confusion issue after unserialize

Severity: Critical

CVSS Score: 9.8

The exception::getTraceAsString function in Zend/zend_exceptions.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to execute arbitrary code via an unexpected data type, related to a "type confusion" issue.