Vulnerability · Published Dec 27, 2025 · Assigned by php

CVE-2025-14177Information Leak of Memory in getimagesize

Medium 6.3

In plain English

A medium-severity out-of-bounds read in PHP from PHP Group. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.3Medium
Exploit odds (30 days)0.5%top 56.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Public PoC

Official 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, 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8apcu-panel5.1.23-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8apcu-panel5.1.18-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:9apcu-panel5.1.23-1.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:9apcu-panel5.1.23-1.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:8libzip1.6.1-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8libzip1.6.1-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:8libzip1.7.3-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8libzip1.6.1-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8libzip-devel1.6.1-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:8libzip-devel1.7.3-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8libzip-devel1.6.1-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8libzip-tools1.6.1-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8libzip-tools1.6.1-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8libzip-tools1.6.1-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:8libzip-tools1.7.3-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:10php8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:10php-bcmath8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-bcmath7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-bcmath8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-bcmath8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-bcmath8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-bcmath8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:10php-cli8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-cli7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-cli8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-cli8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-cli8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-cli8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-common8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-common7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-common8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-common8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-common8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-common8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-dba8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-dba8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-dba7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-dba8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-dba8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-dba8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-dbg8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-dbg7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-dbg8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-dbg8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-dbg8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-dbg8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-devel8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-devel7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-devel8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-devel8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-devel8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-devel8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-embedded8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-embedded8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-embedded7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-embedded8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-embedded8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-embedded8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-enchant8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-enchant8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-enchant7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-enchant8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-enchant8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-enchant8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:10php-ffi8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-ffi8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-ffi7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-ffi8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-ffi8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-ffi8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-fpm8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-fpm8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-fpm7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-fpm8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-fpm8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-fpm8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-gd8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-gd8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-gd7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-gd8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-gd8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-gd8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-gmp8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-gmp7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-gmp8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-gmp8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-gmp8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-gmp8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-intl8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-intl8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-intl7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-intl8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-intl8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-intl8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:8php-json7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:10php-ldap8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-ldap8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-ldap7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-ldap8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-ldap8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-ldap8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-mbstring8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-mbstring8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-mbstring7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-mbstring8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-mbstring8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-mbstring8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-mysqlnd8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-mysqlnd7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-mysqlnd8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-mysqlnd8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-mysqlnd8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-mysqlnd8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-odbc8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-odbc8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-odbc7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-odbc8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-odbc8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-odbc8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-opcache8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-opcache8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-opcache7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-opcache8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-opcache8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-opcache8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-pdo8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-pdo8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-pdo7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-pdo8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-pdo8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-pdo8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:8php-pear1:1.10.13-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pear1:1.10.14-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8php-pecl-apcu5.1.18-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pecl-apcu5.1.18-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8php-pecl-apcu5.1.23-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:9php-pecl-apcu5.1.23-1.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:9php-pecl-apcu5.1.23-1.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:8php-pecl-apcu-devel5.1.18-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8php-pecl-apcu-devel5.1.18-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pecl-apcu-devel5.1.23-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:9php-pecl-apcu-devel5.1.23-1.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:9php-pecl-apcu-devel5.1.23-1.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:9php-pecl-redis66.1.0-2.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:8php-pecl-rrd2.0.1-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8php-pecl-rrd2.0.1-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pecl-rrd2.0.3-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8php-pecl-rrd2.0.1-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:9php-pecl-rrd2.0.3-4.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:9php-pecl-rrd2.0.3-4.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:8php-pecl-xdebug2.9.5-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pecl-xdebug2.9.5-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:8php-pecl-xdebug2.9.5-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8php-pecl-xdebug33.2.2-2.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:9php-pecl-xdebug33.3.1-1.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:9php-pecl-xdebug33.2.2-2.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:8php-pecl-zip1.18.2-1.module_el8.6.0+2750+78feabcbALSA-2026:2470
AlmaLinux:8php-pecl-zip1.22.3-1.module_el8.10.0+3796+30ed3ef7ALSA-2026:1412
AlmaLinux:8php-pecl-zip1.18.2-1.module_el8.10.0+3935+28808425ALSA-2026:2470
AlmaLinux:8php-pecl-zip1.18.2-1.module_el8.6.0+3239+bedf0508ALSA-2026:2470
AlmaLinux:9php-pecl-zip1.22.3-1.module_el9.6.0+151+5f31e576ALSA-2026:1429
AlmaLinux:9php-pecl-zip1.22.3-1.module_el9.4.0+65+49ff6472ALSA-2026:1409
AlmaLinux:10php-pgsql8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-pgsql7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-pgsql8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-pgsql8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-pgsql8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-pgsql8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-process8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-process8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:8php-process7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:9php-process8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-process8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-process8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:10php-snmp8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-snmp7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-snmp8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-snmp8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-snmp8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:9php-snmp8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:10php-soap8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-soap7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-soap8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-soap8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-soap8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-soap8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:10php-xml8.3.29-1.el10_1ALSA-2026:1628
AlmaLinux:8php-xml7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
AlmaLinux:8php-xml8.2.30-1.module_el8.10.0+4108+cff35472ALSA-2026:1412
AlmaLinux:9php-xml8.2.30-1.module_el9.7.0+205+fe410f10ALSA-2026:1409
AlmaLinux:9php-xml8.0.30-5.el9_7ALSA-2026:2799
AlmaLinux:9php-xml8.3.29-1.module_el9.7.0+206+f4fec7f3ALSA-2026:1429
AlmaLinux:8php-xmlrpc7.4.33-3.module_el8.10.0+4114+3b36c618ALSA-2026:2470
Alpine:v3.22php828.2.30-r0ALPINE-CVE-2025-14177
Alpine:v3.22php838.3.29-r0ALPINE-CVE-2025-14177

Affected products (as reported)

VendorProductVersions
PHP Group PHP 8.1.* – before 8.1.348.2.* – before 8.2.308.3.* – before 8.3.298.4.* – before 8.4.168.5.* – before 8.5.1

Weakness: CWE-125 · Vector: 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

References