Oracle Linux: CVE-2025-14178: ELSA-2026-1409: php:8.2 security update (IMPORTANT) (Multiple Advisories)

In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, a heap buffer overflow occurs in array_merge() when the total element count of packed arrays exceeds 32-bit limits or HT_MAX_SIZE, due to an integer overflow in the precomputation of element counts using zend_hash_num_elements(). This may lead to memory corruption or crashes and affect the integrity and availability of the target server.
A flaw was found in PHP. A heap-based buffer overflow occurs in the array_merge function when the total element count of packed arrays exceeds the 32-bit limit or the internal HT_MAX_SIZE due to an integer overflow in the precomputation of element counts using the zend_hash_num_elements function, causing a process crash and potentially memory corruption.