CVE-2013-7327

CVE-2013-7327 is a denial-of-service vulnerability in the gdImageCrop function of PHP 5.5.x before version 5.5.9, affecting PHP and Canonical Ubuntu Linux. It arises from a lack of return value checking, allowing attackers to crash applications or potentially achieve other impacts through invalid imagecrop arguments leading to NULL pointer dereferencing. With a CVSS score of 6.8, it is considered medium severity, requiring medium attack complexity and potentially impacting confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.