p PatchFirst

CVE-2025-14178

CVE-2025-14178 · Heap buffer overflow in array_merge()

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: system · php

Affected products and versions

  • php

    Versions
    • ≥ 8.1.*, < 8.1.34: Affected (semver)
    • ≥ 8.2.*, < 8.2.30: Affected (semver)
    • ≥ 8.3.*, < 8.3.29: Affected (semver)
    • ≥ 8.4.*, < 8.4.16: Affected (semver)
    • ≥ 8.5.*, < 8.5.1: Affected (semver)

    Update to 8.1.34; Update to 8.2.30; Update to 8.3.29; Update to 8.4.16; Update to 8.5.1

  • php8.2 Debian:12

    Versions
    • 8.2.10-1
    • 8.2.10-2
    • 8.2.12-1
    • 8.2.16-1
    • 8.2.16-2
    • 8.2.17-1
    • 8.2.18-1
    • 8.2.18-1~deb12u1
    • 8.2.20-1~deb12u1
    • 8.2.20-2
    • 8.2.20-3
    • 8.2.21-1
    • 8.2.23-1
    • 8.2.24-1
    • 8.2.24-1~deb12u1
    • 8.2.26-1~deb12u1
    • 8.2.26-4
    • 8.2.27-1
    • 8.2.28-1~deb12u1
    • 8.2.29-1~deb12u1
    • 8.2.5-2
    • 8.2.7-1
    • 8.2.7-1.1
    • 8.2.7-1.2
    • 8.2.7-1~deb12u1
    Affected ranges
    • ECOSYSTEM: < 8.2.30-1~deb12u1

    Update to 8.2.30-1~deb12u1

  • php8.4 Debian:13

    Versions
    • 8.4.11-1
    Affected ranges
    • ECOSYSTEM: < 8.4.16-1~deb13u1

    Update to 8.4.16-1~deb13u1

  • php8.4 Debian:14

    Versions
    • 8.4.11-1
    • 8.4.16-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 8.4.16-1

    Update to 8.4.16-1

  • php7.2 Ubuntu:Pro:18.04:LTS

    Versions
    • 7.2.1-1ubuntu2
    • 7.2.2-1ubuntu1
    • 7.2.2-1ubuntu2
    • 7.2.3-1ubuntu1
    • 7.2.5-0ubuntu0.18.04.1
    • 7.2.7-0ubuntu0.18.04.1
    • 7.2.7-0ubuntu0.18.04.2
    • 7.2.10-0ubuntu0.18.04.1
    • 7.2.15-0ubuntu0.18.04.1
    • 7.2.15-0ubuntu0.18.04.2
    • 7.2.17-0ubuntu0.18.04.1
    • 7.2.19-0ubuntu0.18.04.1
    • 7.2.19-0ubuntu0.18.04.2
    • 7.2.24-0ubuntu0.18.04.1
    • 7.2.24-0ubuntu0.18.04.2
    • 7.2.24-0ubuntu0.18.04.3
    • 7.2.24-0ubuntu0.18.04.4
    • 7.2.24-0ubuntu0.18.04.6
    • 7.2.24-0ubuntu0.18.04.7
    • 7.2.24-0ubuntu0.18.04.8
    • 7.2.24-0ubuntu0.18.04.9
    • 7.2.24-0ubuntu0.18.04.10
    • 7.2.24-0ubuntu0.18.04.11
    • 7.2.24-0ubuntu0.18.04.12
    • 7.2.24-0ubuntu0.18.04.13
    • 7.2.24-0ubuntu0.18.04.15
    • 7.2.24-0ubuntu0.18.04.16
    • 7.2.24-0ubuntu0.18.04.17
    • 7.2.24-0ubuntu0.18.04.17+esm1
    • 7.2.24-0ubuntu0.18.04.17+esm2
    • 7.2.24-0ubuntu0.18.04.17+esm3
    • 7.2.24-0ubuntu0.18.04.17+esm4
    • 7.2.24-0ubuntu0.18.04.17+esm5
    • 7.2.24-0ubuntu0.18.04.17+esm6
    • 7.2.24-0ubuntu0.18.04.17+esm7
    • 7.2.24-0ubuntu0.18.04.17+esm8
    • 7.2.24-0ubuntu0.18.04.17+esm9
    • 7.2.24-0ubuntu0.18.04.17+esm10
    • 7.2.24-0ubuntu0.18.04.17+esm11
    Affected ranges
    • ECOSYSTEM: < 7.2.24-0ubuntu0.18.04.17+esm12

    Update to 7.2.24-0ubuntu0.18.04.17+esm12

  • php7.4 Ubuntu:Pro:20.04:LTS

    Versions
    • 7.4.3-4build1
    • 7.4.3-4build2
    • 7.4.3-4ubuntu1
    • 7.4.3-4ubuntu1.1
    • 7.4.3-4ubuntu2.2
    • 7.4.3-4ubuntu2.4
    • 7.4.3-4ubuntu2.5
    • 7.4.3-4ubuntu2.6
    • 7.4.3-4ubuntu2.7
    • 7.4.3-4ubuntu2.8
    • 7.4.3-4ubuntu2.9
    • 7.4.3-4ubuntu2.10
    • 7.4.3-4ubuntu2.11
    • 7.4.3-4ubuntu2.12
    • 7.4.3-4ubuntu2.13
    • 7.4.3-4ubuntu2.15
    • 7.4.3-4ubuntu2.16
    • 7.4.3-4ubuntu2.17
    • 7.4.3-4ubuntu2.18
    • 7.4.3-4ubuntu2.19
    • 7.4.3-4ubuntu2.20
    • 7.4.3-4ubuntu2.22
    • 7.4.3-4ubuntu2.23
    • 7.4.3-4ubuntu2.24
    • 7.4.3-4ubuntu2.26
    • 7.4.3-4ubuntu2.28
    • 7.4.3-4ubuntu2.29
    • 7.4.3-4ubuntu2.29+esm1
    • 7.4.3-4ubuntu2.29+esm2
    Affected ranges
    • ECOSYSTEM: < 7.4.3-4ubuntu2.29+esm3

    Update to 7.4.3-4ubuntu2.29+esm3

  • php8.1 Ubuntu:22.04:LTS

    Versions
    • 8.1.0~rc4-1ubuntu2
    • 8.1.0-1
    • 8.1.2-1ubuntu1
    • 8.1.2-1ubuntu2
    • 8.1.2-1ubuntu2.1
    • 8.1.2-1ubuntu2.2
    • 8.1.2-1ubuntu2.3
    • 8.1.2-1ubuntu2.4
    • 8.1.2-1ubuntu2.5
    • 8.1.2-1ubuntu2.6
    • 8.1.2-1ubuntu2.8
    • 8.1.2-1ubuntu2.9
    • 8.1.2-1ubuntu2.10
    • 8.1.2-1ubuntu2.11
    • 8.1.2-1ubuntu2.13
    • 8.1.2-1ubuntu2.14
    • 8.1.2-1ubuntu2.15
    • 8.1.2-1ubuntu2.17
    • 8.1.2-1ubuntu2.18
    • 8.1.2-1ubuntu2.19
    • 8.1.2-1ubuntu2.20
    • 8.1.2-1ubuntu2.21
    • 8.1.2-1ubuntu2.22
    Affected ranges
    • ECOSYSTEM: < 8.1.2-1ubuntu2.23

    Update to 8.1.2-1ubuntu2.23

  • php8.3 Ubuntu:24.04:LTS

    Versions
    • 8.3.0-1
    • 8.3.0-1ubuntu1
    • 8.3.4-1
    • 8.3.4-1build1
    • 8.3.6-0maysync1
    • 8.3.6-0ubuntu0.24.04.1
    • 8.3.6-0ubuntu0.24.04.2
    • 8.3.6-0ubuntu0.24.04.3
    • 8.3.6-0ubuntu0.24.04.4
    • 8.3.6-0ubuntu0.24.04.5
    Affected ranges
    • ECOSYSTEM: < 8.3.6-0ubuntu0.24.04.6

    Update to 8.3.6-0ubuntu0.24.04.6

  • php8.4 Ubuntu:25.10

    Versions
    • 8.4.5-1ubuntu1
    • 8.4.8-1ubuntu1
    • 8.4.11-1ubuntu1
    Affected ranges
    • ECOSYSTEM: < 8.4.11-1ubuntu1.1

    Update to 8.4.11-1ubuntu1.1

Original sources

Check your server →