| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 8.1.0, < 8.1.34≥ 8.2.0, < 8.2.30≥ 8.3.0, < 8.3.29≥ 8.4.0, < 8.4.16≥ 8.5.0, < 8.5.1 | 8.1.348.2.308.3.298.4.168.5.1 |
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.
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