CVE-2025-14178

Description

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.

Affected packages (7)

• Bitnami/libphpfrom 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
• Bitnami/phpfrom 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
• Bitnami/php-minfrom 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
• Debian/php7.4from 0, < 7.4.33-1+deb11u10
• Debian/php7.4from 0, < 7.4.33-1+deb11u10
• Debian/php8.2from 0, < 8.2.30-1~deb12u1
• Debian/php8.4from 0, < 8.4.16-1~deb13u1

CVSS scores

References (4)

• ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-14178
• WEBhttps://github.com/php/php-src/security/advisories/GHSA-h96m-rvf9-jgm2
• WEBhttps://lists.debian.org/debian-lts-announce/2026/01/msg00019.html
• WEBhttps://nvd.nist.gov/vuln/detail/CVE-2025-14178