Description
The zend_hash_init function in PHP 5 before 5.2.1 and PHP 4 before 4.4.5, when running on a 64-bit platform, allows context-dependent attackers to cause a denial of service (infinite loop) by unserializing certain integer expressions, which only cause 32-bit arguments to be used after the check for a negative value, as demonstrated by an "a:2147483649:{" argument.
Remediation
References
Related Vulnerabilities
Contao Improper Encoding or Escaping of Output Vulnerability (CVE-2019-19714)
Oracle JRE CVE-2020-2757 Vulnerability (CVE-2020-2757)
Jenkins Resource Management Errors Vulnerability (CVE-2014-3661)
PHP Improper Input Validation Vulnerability (CVE-2017-8923)
WordPress Plugin Booking Calendar-Appointment Booking-BookIt Unspecified Vulnerability (2.3.8)