Intrusion Prevention

PHP.Core.Unserialize.Key.Name.Memory.Corruption

Description

This indicates an attack attempt to exploit a Code Execution vulnerability in PHP.
The vulnerability is due to a use after free error while vulnerable application handles a maliciously crafted serialized object. A remote attacker may be able exploit this to execute arbitrary code within the context of the application via crafted packets.

Affected Products

PHP Group PHP prior to 5.4.37
PHP Group PHP prior to 5.5.21
PHP Group PHP prior to 5.6.5

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://php.net/releases/5_6_5.php

CVE References

CVE-2015-0231