CVE-2016-5771

Name of the Vulnerable Software and Affected Versions PHP versions prior to 5.5.37 PHP versions 5.6.x prior to 5.6.23

Description The issue is related to improper interaction between the SPL extension and the unserialize implementation, along with garbage collection. This can be exploited by remote attackers using crafted serialized data, potentially leading to the execution of arbitrary code or a denial of service, resulting in a use-after-free condition and application crash.

Recommendations For PHP versions prior to 5.5.37, update to version 5.5.37 or later. For PHP versions 5.6.x prior to 5.6.23, update to version 5.6.23 or later.