CVE-2016-5773: php: ZipArchive class Use After Free Vulnerability in PHP's GC algorithm and unserialize

Severity: Critical

CVSS Score: 9.8

php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object.