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Fencer Vulns
high 7.5

CVE-2025-14177 json

Information Leak of Memory in getimagesize

published 2025-12-18 10 mo ago modified 2026-10-13 26 d ago also BIT-libphp-2025-14177 , BIT-php-2025-14177 , BIT-php-min-2025-14177 , EUVD-2025-205484 , GHSA-3237-qqm7-mfv7

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

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, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.

Patch / fix

  • bitnami libphp 8.1.34, 8.2.30, 8.3.29, 8.4.16, 8.5.1
  • bitnami php 8.1.34, 8.2.30, 8.3.29, 8.4.16, 8.5.1
  • bitnami php-min 8.1.34, 8.2.30, 8.3.29, 8.4.16, 8.5.1
  • PHP Group PHP 8.1.34, 8.2.30, 8.3.29, 8.4.16, 8.5.1
  • php8.2 Debian 12 8.2.30-1~deb12u1
  • php8.4 Debian 13 8.4.16-1~deb13u1
  • php8.4 Debian 14 8.4.16-1

debian advisories DEBIAN-CVE-2025-14177

  • php8.3 Ubuntu 24.04 LTS 8.3.6-0ubuntu0.24.04.6
  • php8.4 Ubuntu 25.10 8.4.11-1ubuntu1.1

ubuntu advisories UBUNTU-CVE-2025-14177

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php hummingbird 1 8.5.5-1.1.hum1
  • php-gd hummingbird 1 8.5.5-1.1.hum1
  • php-cli hummingbird 1 8.5.5-1.1.hum1
  • php-dba hummingbird 1 8.5.5-1.1.hum1
  • php-dbg hummingbird 1 8.5.5-1.1.hum1
  • php-ffi hummingbird 1 8.5.5-1.1.hum1
  • php-fpm hummingbird 1 8.5.5-1.1.hum1
  • php-gmp hummingbird 1 8.5.5-1.1.hum1

red hat advisories RHSA-2026:7614RHSA-2026:2799RHSA-2026:2470RHSA-2026:1628RHSA-2026:1429RHSA-2026:1412

  • php8 SLES for SAP applications 16.0, SLES 16.0 8.4.16-160000.1.1
  • php8-fpm SLES for SAP applications 16.0, SLES 16.0 8.4.16-160000.1.1
  • php8-embed SLES for SAP applications 16.0, SLES 16.0 8.4.16-160000.1.1
  • php8-fastcgi SLES for SAP applications 16.0, SLES 16.0 8.4.16-160000.1.1
  • apache2-mod_php8 SLES for SAP applications 16.0, SLES 16.0 8.4.16-160000.1.1
  • php8 SLE Module for Web and Scripting 15 SP7 8.3.29-150700.3.9.1
  • php8-fpm SLE Module for Web and Scripting 15 SP7 8.3.29-150700.3.9.1
  • php8-test SLE Module for Web and Scripting 15 SP7 8.3.29-150700.3.9.1

suse advisories SUSE-SU-2026:20146-1SUSE-SU-2026:0086-1SUSE-SU-2026:0071-1

  • php8 openSUSE Leap 16.0 8.4.16-160000.1.1
  • php8-fpm openSUSE Leap 16.0 8.4.16-160000.1.1
  • php8-test openSUSE Leap 16.0 8.4.16-160000.1.1
  • php8-embed openSUSE Leap 16.0 8.4.16-160000.1.1
  • php8-fastcgi openSUSE Leap 16.0 8.4.16-160000.1.1
  • apache2-mod_php8 openSUSE Leap 16.0 8.4.16-160000.1.1
  • php8 openSUSE Tumbleweed 8.4.16-1.1

opensuse advisories openSUSE-SU-2026:20113-1openSUSE-SU-2025:15837-1

  • php AlmaLinux 9 8.0.30-5.el9_7
  • php-gd AlmaLinux 9 8.0.30-5.el9_7
  • php-cli AlmaLinux 9 8.0.30-5.el9_7
  • php-dba AlmaLinux 9 8.0.30-5.el9_7
  • php-dbg AlmaLinux 9 8.0.30-5.el9_7
  • php-ffi AlmaLinux 9 8.0.30-5.el9_7
  • php-fpm AlmaLinux 9 8.0.30-5.el9_7
  • php-gmp AlmaLinux 9 8.0.30-5.el9_7

almalinux advisories ALSA-2026:2799ALSA-2026:2470ALSA-2026:1628ALSA-2026:1409ALSA-2026:1412ALSA-2026:1429

  • php Rocky Linux 9 8.0.30-5.el9_7
  • libzip Rocky Linux 8 1.6.1-1.module+el8.10.0+1912+72767185
  • php-pear Rocky Linux 8 1:1.10.13-1.module+el8.10.0+1912+72767185
  • php-pear Rocky Linux 8 1:1.10.13-1.module+el8.10.0+1605+02e07af7
  • php-pecl-rrd Rocky Linux 8 2.0.1-1.module+el8.4.0+414+2e7afcdd
  • php-pecl-rrd Rocky Linux 8 2.0.1-1.module+el8.10.0+1912+72767185
  • php-pecl-zip Rocky Linux 8 1.18.2-1.module+el8.10.0+1912+72767185
  • php-pecl-apcu Rocky Linux 8 5.1.18-1.module+el8.10.0+1912+72767185

rocky linux advisories RLSA-2026:2799RLSA-2026:2470RLSA-2026:1628RLSA-2026:1409RLSA-2026:1429RLSA-2026:1412

  • php81 Alpine 3.19 8.1.34-r0
  • php82 Alpine 3.22 8.2.30-r0
  • php83 Alpine 3.24, Alpine 3.23, Alpine 3.22 8.3.29-r0
  • php84 Alpine 3.24, Alpine 3.23, Alpine 3.22 8.4.16-r0
  • php85 Alpine 3.24, Alpine 3.23 8.5.1-r0

alpine advisories ALPINE-CVE-2025-14177

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • php Azure Linux 3.0 8.3.29-1
  • php CBL-Mariner 2.0 8.1.34-1

azure linux advisories AZL-73195AZL-73240

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-14177 updated cvss 3.7

php: PHP: Information disclosure via getimagesize() function when reading multi-chunk images

  • Red Hat Enterprise Linux 6 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +20 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 10 php8.4 Red Hat OpenShift AI (RHOAI) rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 Red Hat OpenShift Dev Spaces devspaces/code-rhel9, devspaces-tech-preview/idea-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 8) php 7.4.33-3.module+el8.10.0+23902+d3c8dd8f, php 8.2.30-1.module+el8.10.0+23848+33d54484, libzip 1.6.1-1.module+el8.10.0+22485+a3539972, libzip 1.7.3-1.module+el8.10.0+20770+a5eca186, php-gd 7.4.33-3.module+el8.10.0+23902+d3c8dd8f, php-gd 8.2.30-1.module+el8.10.0+23848+33d54484, +60 more
    fixed: vendor fix RHSA-2026:2470
  • Red Hat Enterprise Linux AppStream (v. 9) php 8.0.30-5.el9_7, php-gd 8.0.30-5.el9_7, php-cli 8.0.30-5.el9_7, php-dba 8.0.30-5.el9_7, php-dbg 8.0.30-5.el9_7, php-ffi 8.0.30-5.el9_7, +77 more
    fixed: vendor fix RHSA-2026:1409
  • Red Hat Enterprise Linux AppStream (v. 10) php 8.3.29-1.el10_1, php-gd 8.3.29-1.el10_1, php-cli 8.3.29-1.el10_1, php-dba 8.3.29-1.el10_1, php-dbg 8.3.29-1.el10_1, php-ffi 8.3.29-1.el10_1, +18 more
    fixed: vendor fix RHSA-2026:1628
  • Red Hat Hardened Images php 8.5.5-1.1.hum1, php-gd 8.5.5-1.1.hum1, php-cli 8.5.5-1.1.hum1, php-dba 8.5.5-1.1.hum1, php-dbg 8.5.5-1.1.hum1, php-ffi 8.5.5-1.1.hum1, +21 more
    fixed: vendor fix RHSA-2026:7614
  • Red Hat Enterprise Linux 7 php, php-gd, php-cli, php-dba, php-fpm, php-pdo, +18 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
10 mo ago

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/php/php-src/security/advisories/GHSA-3237-qqm7-mfv7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
CNA 4.0 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami libphp
<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
8.1.34
8.2.30
8.3.29
8.4.16
8.5.1
bitnami php
<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
8.1.34
8.2.30
8.3.29
8.4.16
8.5.1
bitnami php-min
<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
8.1.34
8.2.30
8.3.29
8.4.16
8.5.1

Affected products

  • PHP Group PHP

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of php/php-src published their own advisory on GitHub. Reviewed sources take precedence over it.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.