In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer than 2,147,483,647 bytes is passed, a signed integer overflow occurs, resulting in undefined behavior. This can lead to an out-of-bounds read, causing a segmentation fault or access to unrelated memory, and may affect the availability of the PHP process.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade php-dbaUpgrade php-jsonUpgrade php-pecl-apcu-develUpgrade php-mbstringUpgrade php-processUpgrade php-gmpUpgrade libzip-toolsUpgrade php-ffiUpgrade php-enchantUpgrade php-opcacheUpgrade php-soapUpgrade php-pdoUpgrade php-pecl-rrdUpgrade libzipUpgrade php-xmlrpcUpgrade php-embeddedUpgrade php-mysqlndUpgrade php-gdUpgrade phpUpgrade php-pecl-zipUpgrade php-develUpgrade php-pearUpgrade php-pecl-apcuUpgrade php-dbgUpgrade php-commonUpgrade php-ldapUpgrade php-bcmathUpgrade php-snmpUpgrade libzip-develUpgrade php-pecl-xdebug3Upgrade php-pgsqlUpgrade php-intlUpgrade php-fpmUpgrade php-cliUpgrade php-pecl-redis6Upgrade php-odbcUpgrade apcu-panelUpgrade php-xmlUpgrade php-pecl-xdebug | Jun 1, 2026 | Jun 1, 2026 |
| Alpine Linux | — | Upgrade php83Upgrade php81Upgrade php84Upgrade php82Upgrade php85 | May 15, 2026 | May 10, 2026 |
| Amazon Linux Ami 2 | — | Upgrade php-snmpUpgrade php-soapUpgrade php-intlUpgrade phpUpgrade php-debuginfoUpgrade php-embeddedUpgrade php-dbgUpgrade php-pgsqlUpgrade php-odbcUpgrade php-commonUpgrade php-pspellUpgrade php-enchantUpgrade php-opcacheUpgrade php-dbaUpgrade php-sodiumUpgrade php-cliUpgrade php-ldapUpgrade php-mysqlndUpgrade php-gmpUpgrade php-xmlUpgrade php-pdoUpgrade php-bcmathUpgrade php-develUpgrade php-mbstringUpgrade php-processUpgrade php-fpmUpgrade php-gd | Jun 8, 2026 | Jun 8, 2026 |
| Amazon_linux_2023 | — | Upgrade php8.5-snmpUpgrade php8.5-fpmUpgrade php8.5-ldapUpgrade php8.2-pgsql-debuginfoUpgrade php8.3-gmpUpgrade php8.4-mysqlnd-debuginfoUpgrade php8.5-bcmath-debuginfoUpgrade php8.2-xml-debuginfoUpgrade php8.5-dbaUpgrade php8.4-fpm-debuginfoUpgrade php8.4-pgsql-debuginfoUpgrade php8.5-mbstring-debuginfoUpgrade php8.2-sodiumUpgrade php8.3-xmlUpgrade php8.5-tidy-debuginfoUpgrade php8.2-soapUpgrade php8.3-snmp-debuginfoUpgrade php8.5-ldap-debuginfoUpgrade php8.5-bcmathUpgrade php8.5-enchant-debuginfoUpgrade php8.2-dba-debuginfoUpgrade php8.2-embedded-debuginfoUpgrade php8.2-mysqlndUpgrade php8.5-mbstringUpgrade php8.2-process-debuginfoUpgrade php8.2-debuginfoUpgrade php8.2-snmp-debuginfoUpgrade php8.3-modphpUpgrade php8.4-embeddedUpgrade php8.2-pdoUpgrade php8.3-embedded-debuginfoUpgrade php8.3-cliUpgrade php8.3-ffi-debuginfoUpgrade php8.2-common-debuginfoUpgrade php8.3-ldap-debuginfoUpgrade php8.3-mysqlnd-debuginfoUpgrade php8.3-pgsqlUpgrade php8.5-embeddedUpgrade php8.5-gmpUpgrade php8.5-cli-debuginfoUpgrade php8.5-pgsql-debuginfoUpgrade php8.5-sodium-debuginfoUpgrade php8.5-xml-debuginfoUpgrade php8.3-dbgUpgrade php8.5-pdo-debuginfoUpgrade php8.3-debuginfoUpgrade php8.2-gdUpgrade php8.2-mbstring-debuginfoUpgrade php8.3-dbg-debuginfoUpgrade php8.4-cli-debuginfoUpgrade php8.3-fpm-debuginfoUpgrade php8.3-pspell-debuginfoUpgrade php8.4-cliUpgrade php8.4-gdUpgrade php8.5-dbg-debuginfoUpgrade php8.5-modphpUpgrade php8.5-mysqlndUpgrade php8.2-bcmathUpgrade php8.2-ldapUpgrade php8.3-opcache-debuginfoUpgrade php8.2-enchant-debuginfoUpgrade php8.3-pgsql-debuginfoUpgrade php8.4-debuginfoUpgrade php8.3-processUpgrade php8.4-debugsourceUpgrade php8.2-fpmUpgrade php8.5-gd-debuginfoUpgrade php8.2-ffiUpgrade php8.2-dbgUpgrade php8.3-enchant-debuginfoUpgrade php8.4-snmp-debuginfoUpgrade php8.3-pspellUpgrade php8.5-cliUpgrade php8.5-intl-debuginfoUpgrade php8.4-sodiumUpgrade php8.2-odbcUpgrade php8.5-common-debuginfoUpgrade php8.4-mbstringUpgrade php8.5-dba-debuginfoUpgrade php8.4-xmlUpgrade php8.5-debugsourceUpgrade php8.2-cli-debuginfoUpgrade php8.3-gdUpgrade php8.2-ffi-debuginfoUpgrade php8.4-ffiUpgrade php8.3-gd-debuginfoUpgrade php8.4-common-debuginfoUpgrade php8.3-soap-debuginfoUpgrade php8.4-intl-debuginfoUpgrade php8.4-ldapUpgrade php8.4-odbc-debuginfoUpgrade php8.4-soapUpgrade php8.2-processUpgrade php8.3-bcmath-debuginfoUpgrade php8.3-mbstringUpgrade php8.3-embeddedUpgrade php8.4-fpmUpgrade php8.4-intlUpgrade php8.5-enchantUpgrade php8.5-modphp-debuginfoUpgrade php8.3Upgrade php8.3-bcmathUpgrade php8.4-ffi-debuginfoUpgrade php8.3-tidyUpgrade php8.3-mbstring-debuginfoUpgrade php8.3-xml-debuginfoUpgrade php8.3-zipUpgrade php8.3-dbaUpgrade php8.4-modphpUpgrade php8.4-snmpUpgrade php8.5-commonUpgrade php8.3-commonUpgrade php8.4-tidyUpgrade php8.5-embedded-debuginfoUpgrade php8.4-sodium-debuginfoUpgrade php8.4-ldap-debuginfoUpgrade php8.4-bcmath-debuginfoUpgrade php8.3-snmpUpgrade php8.5-fpm-debuginfoUpgrade php8.4-pgsqlUpgrade php8.4-pdoUpgrade php8.3-enchantUpgrade php8.2-mysqlnd-debuginfoUpgrade php8.2-gd-debuginfoUpgrade php8.3-common-debuginfoUpgrade php8.3-cli-debuginfoUpgrade php8.2-commonUpgrade php8.5-intlUpgrade php8.4-zipUpgrade php8.4-process-debuginfoUpgrade php8.4-embedded-debuginfoUpgrade php8.4-dbg-debuginfoUpgrade php8.3-zip-debuginfoUpgrade php8.3-sodium-debuginfoUpgrade php8.2-embeddedUpgrade php8.2-mbstringUpgrade php8.2-opcacheUpgrade php8.2-snmpUpgrade php8.2-pdo-debuginfoUpgrade php8.2-gmp-debuginfoUpgrade php8.2-bcmath-debuginfoUpgrade php8.5-sodiumUpgrade php8.5-odbc-debuginfoUpgrade php8.5-mysqlnd-debuginfoUpgrade php8.5-develUpgrade php8.4-gmp-debuginfoUpgrade php8.4-enchant-debuginfoUpgrade php8.4Upgrade php8.3-intlUpgrade php8.3-ffiUpgrade php8.4-xml-debuginfoUpgrade php8.3-tidy-debuginfoUpgrade php8.3-mysqlndUpgrade php8.3-develUpgrade php8.2-pspell-debuginfoUpgrade php8.2-pspellUpgrade php8.2-opcache-debuginfoUpgrade php8.2-intlUpgrade php8.2-gmpUpgrade php8.2-dbg-debuginfoUpgrade php8.5-zip-debuginfoUpgrade php8.5-tidyUpgrade php8.5-process-debuginfoUpgrade php8.5-pdoUpgrade php8.5-debuginfoUpgrade php8.5-dbgUpgrade php8.4-gd-debuginfoUpgrade php8.5-zipUpgrade php8.4-bcmathUpgrade php8.3-fpmUpgrade php8.3-debugsourceUpgrade php8.4-dbaUpgrade php8.2-xmlUpgrade php8.2-dbaUpgrade php8.2Upgrade php8.5-xmlUpgrade php8.5-snmp-debuginfoUpgrade php8.4-zip-debuginfoUpgrade php8.4-soap-debuginfoUpgrade php8.4-opcacheUpgrade php8.4-enchantUpgrade php8.2-zip-debuginfoUpgrade php8.4-processUpgrade php8.4-develUpgrade php8.3-process-debuginfoUpgrade php8.4-mysqlndUpgrade php8.4-gmpUpgrade php8.4-commonUpgrade php8.3-modphp-debuginfoUpgrade php8.2-pgsqlUpgrade php8.2-enchantUpgrade php8.5-pgsqlUpgrade php8.5-gdUpgrade php8.4-opcache-debuginfoUpgrade php8.4-mbstring-debuginfoUpgrade php8.4-tidy-debuginfoUpgrade php8.4-dbgUpgrade php8.3-sodiumUpgrade php8.5-ffi-debuginfoUpgrade php8.5Upgrade php8.4-pdo-debuginfoUpgrade php8.3-opcacheUpgrade php8.3-odbcUpgrade php8.3-ldapUpgrade php8.3-gmp-debuginfoUpgrade php8.2-soap-debuginfoUpgrade php8.2-debugsourceUpgrade php8.5-soapUpgrade php8.5-odbcUpgrade php8.3-dba-debuginfoUpgrade php8.2-tidy-debuginfoUpgrade php8.5-ffiUpgrade php8.2-fpm-debuginfoUpgrade php8.3-soapUpgrade php8.4-odbcUpgrade php8.3-pdo-debuginfoUpgrade php8.3-pdoUpgrade php8.2-zipUpgrade php8.2-odbc-debuginfoUpgrade php8.2-cliUpgrade php8.2-intl-debuginfoUpgrade php8.3-odbc-debuginfoUpgrade php8.5-soap-debuginfoUpgrade php8.2-develUpgrade php8.2-ldap-debuginfoUpgrade php8.4-modphp-debuginfoUpgrade php8.4-dba-debuginfoUpgrade php8.5-gmp-debuginfoUpgrade php8.3-intl-debuginfoUpgrade php8.2-sodium-debuginfoUpgrade php8.2-tidyUpgrade php8.5-process | May 28, 2026 | May 10, 2026 |
| Debian | — | Upgrade php8.4Upgrade php7.4Upgrade php8.2 | May 10, 2026 | May 10, 2026 |
| Oracle_linux | — | Upgrade php-pecl-zipUpgrade php-processUpgrade php-intlUpgrade php8.4-dbgUpgrade php8.4Upgrade php8.4-odbcUpgrade php8.4-intlUpgrade php8.4-pdoUpgrade php-jsonUpgrade apcu-panelUpgrade php-gmpUpgrade php8.4-opcacheUpgrade php-embeddedUpgrade php8.4-pgsqlUpgrade php8.4-commonUpgrade libzipUpgrade php-pecl-apcu-develUpgrade php8.4-mbstringUpgrade php-mbstringUpgrade php-ffiUpgrade php-enchantUpgrade libzip-toolsUpgrade php-dbaUpgrade php-pecl-rrdUpgrade php8.4-develUpgrade php-soapUpgrade php-gdUpgrade php-xmlrpcUpgrade php8.4-dbaUpgrade php8.4-mysqlndUpgrade php8.4-processUpgrade php8.4-gdUpgrade libzip-develUpgrade php8.4-soapUpgrade php-ldapUpgrade php-pecl-xdebug3Upgrade php8.4-embeddedUpgrade php-snmpUpgrade php-pgsqlUpgrade php-odbcUpgrade php8.4-cliUpgrade php-fpmUpgrade php-develUpgrade php-dbgUpgrade phpUpgrade php-pdoUpgrade php-opcacheUpgrade php-commonUpgrade php8.4-snmpUpgrade php8.4-ldapUpgrade php8.4-fpmUpgrade php-xmlUpgrade php8.4-xmlUpgrade php-pecl-apcuUpgrade php-pearUpgrade php-mysqlndUpgrade php-cliUpgrade php8.4-ffiUpgrade php8.4-enchantUpgrade php8.4-bcmathUpgrade php-pecl-xdebugUpgrade php-pecl-redis6Upgrade php-bcmathUpgrade php8.4-gmp | Jun 4, 2026 | May 10, 2026 |
| Redhat_linux | — | Upgrade php8.4-pgsqlUpgrade php-xmlrpcUpgrade php-ffiUpgrade php-dba-debuginfoUpgrade libzip-toolsUpgrade php8.4-commonUpgrade php-pecl-rrdUpgrade php8.4-embedded-debuginfoUpgrade php8.4-develUpgrade php8.4-mbstringUpgrade php-processUpgrade php8.4-pgsql-debuginfoUpgrade php-mysqlnd-debuginfoUpgrade php-snmpUpgrade php-odbcUpgrade php-dbaUpgrade php8.4-enchantUpgrade php-intlUpgrade php-pecl-apcu-debuginfoUpgrade php8.4-process-debuginfoUpgrade php8.4-dbgUpgrade php-bcmath-debuginfoUpgrade php8.4Upgrade php8.4-mysqlndUpgrade php-dbg-debuginfoUpgrade php-opcache-debuginfoUpgrade php8.4-xml-debuginfoUpgrade php-pgsqlUpgrade php8.4-odbc-debuginfoUpgrade php-cliUpgrade php8.4-snmp-debuginfoUpgrade php-pgsql-debuginfoUpgrade php-cli-debuginfoUpgrade php-pecl-redis6-debugsourceUpgrade php8.4-soap-debuginfoUpgrade php8.4-gmpUpgrade php8.4-ldap-debuginfoUpgrade php8.4-enchant-debuginfoUpgrade php8.4-dbaUpgrade php-soap-debuginfoUpgrade libzip-debugsourceUpgrade php-mbstringUpgrade php8.4-gmp-debuginfoUpgrade php-commonUpgrade php-pecl-rrd-debugsourceUpgrade php-opcacheUpgrade php-snmp-debuginfoUpgrade php8.4-pdoUpgrade php-process-debuginfoUpgrade php-xml-debuginfoUpgrade php-mysqlndUpgrade php8.4-opcacheUpgrade php-xmlUpgrade php-debuginfoUpgrade php-ldap-debuginfoUpgrade php-pecl-rrd-debuginfoUpgrade php-common-debuginfoUpgrade php8.4-debuginfoUpgrade php-pecl-redis6-debuginfoUpgrade php8.4-ffi-debuginfoUpgrade php-pecl-xdebug-debugsourceUpgrade libzip-develUpgrade php-intl-debuginfoUpgrade php-pearUpgrade php-pecl-xdebug3Upgrade php-jsonUpgrade libzip-tools-debuginfoUpgrade apcu-panelUpgrade php-pdo-debuginfoUpgrade php-soapUpgrade php-pecl-apcu-debugsourceUpgrade php-json-debuginfoUpgrade php8.4-mbstring-debuginfoUpgrade php8.4-intlUpgrade php8.4-opcache-debuginfoUpgrade php8.4-dba-debuginfoUpgrade libzip-debuginfoUpgrade php8.4-xmlUpgrade php-enchant-debuginfoUpgrade php-enchantUpgrade php8.4-mysqlnd-debuginfoUpgrade php8.4-gd-debuginfoUpgrade php-pecl-zip-debugsourceUpgrade php-pecl-xdebug3-debugsourceUpgrade php-xmlrpc-debuginfoUpgrade php8.4-bcmath-debuginfoUpgrade php-pecl-xdebug-debuginfoUpgrade php-ldapUpgrade php-ffi-debuginfoUpgrade php-debugsourceUpgrade php-embedded-debuginfoUpgrade php-fpm-debuginfoUpgrade php8.4-ldapUpgrade php-pecl-apcu-develUpgrade phpUpgrade php8.4-ffiUpgrade php-pdoUpgrade php-pecl-redis6Upgrade libzipUpgrade php8.4-debugsourceUpgrade php8.4-processUpgrade php-develUpgrade php-pecl-zipUpgrade php-dbgUpgrade php8.4-fpm-debuginfoUpgrade php-pecl-xdebug3-debuginfoUpgrade php8.4-pdo-debuginfoUpgrade php-gmpUpgrade php-pecl-apcuUpgrade php8.4-cliUpgrade php-bcmathUpgrade php8.4-intl-debuginfoUpgrade php-fpmUpgrade php-embeddedUpgrade php8.4-gdUpgrade php8.4-common-debuginfoUpgrade php-pecl-zip-debuginfoUpgrade php-pecl-xdebugUpgrade php-gmp-debuginfoUpgrade php8.4-soapUpgrade php8.4-cli-debuginfoUpgrade php8.4-bcmathUpgrade php8.4-fpmUpgrade php8.4-embeddedUpgrade php-gd-debuginfoUpgrade php-gdUpgrade php8.4-odbcUpgrade php-odbc-debuginfoUpgrade php-mbstring-debuginfoUpgrade php8.4-snmpUpgrade php8.4-dbg-debuginfo | Jun 3, 2026 | May 10, 2026 |
| Rocky_linux | — | Upgrade php-cliUpgrade libzip-develUpgrade php-mbstringUpgrade php8.4-gd-debuginfoUpgrade php8.4-mbstringUpgrade php-cli-debuginfoUpgrade php8.4-soap-debuginfoUpgrade php-pecl-apcu-debugsourceUpgrade php-pecl-redis6-debuginfoUpgrade php8.4-pgsqlUpgrade php8.4-xml-debuginfoUpgrade phpUpgrade php8.4-ldap-debuginfoUpgrade php-dbaUpgrade php8.4-enchantUpgrade php-opcacheUpgrade php-opcache-debuginfoUpgrade php-mysqlndUpgrade php-process-debuginfoUpgrade php8.4-opcacheUpgrade php8.4-dba-debuginfoUpgrade php8.4-ffi-debuginfoUpgrade libzip-debugsourceUpgrade php-bcmath-debuginfoUpgrade php8.4-embedded-debuginfoUpgrade php-intlUpgrade php-ldap-debuginfoUpgrade php-processUpgrade php-pgsql-debuginfoUpgrade php-snmpUpgrade php-dbg-debuginfoUpgrade php-intl-debuginfoUpgrade php8.4-snmp-debuginfoUpgrade php-pecl-rrdUpgrade libzip-toolsUpgrade php-snmp-debuginfoUpgrade php-soapUpgrade php8.4-gmpUpgrade php8.4-enchant-debuginfoUpgrade php-pecl-rrd-debugsourceUpgrade php8.4Upgrade php8.4-develUpgrade php-pecl-redis6-debugsourceUpgrade php-pecl-apcu-debuginfoUpgrade php-pgsqlUpgrade php8.4-pdoUpgrade php8.4-gmp-debuginfoUpgrade php-gdUpgrade php8.4-pgsql-debuginfoUpgrade php-soap-debuginfoUpgrade php-fpm-debuginfoUpgrade php-debuginfoUpgrade php8.4-odbc-debuginfoUpgrade php8.4-mysqlndUpgrade php8.4-common-debuginfoUpgrade php-pdo-debuginfoUpgrade php8.4-process-debuginfoUpgrade php-ffiUpgrade php8.4-fpm-debuginfoUpgrade php8.4-processUpgrade php-odbc-debuginfoUpgrade php8.4-pdo-debuginfoUpgrade php8.4-xmlUpgrade php8.4-ldapUpgrade php-xmlUpgrade php-pecl-xdebugUpgrade php-pecl-apcuUpgrade php-pecl-zip-debuginfoUpgrade php-commonUpgrade php-xmlrpcUpgrade php-gmpUpgrade php8.4-dbgUpgrade php8.4-debugsourceUpgrade php8.4-cli-debuginfoUpgrade php8.4-bcmath-debuginfoUpgrade php-xmlrpc-debuginfoUpgrade php-jsonUpgrade php-enchantUpgrade php-common-debuginfoUpgrade php8.4-gdUpgrade php8.4-bcmathUpgrade php8.4-intl-debuginfoUpgrade php8.4-embeddedUpgrade php8.4-debuginfoUpgrade php8.4-dbg-debuginfoUpgrade php8.4-cliUpgrade php-gmp-debuginfoUpgrade php-debugsourceUpgrade php-dba-debuginfoUpgrade php-bcmathUpgrade libzip-tools-debuginfoUpgrade libzip-debuginfoUpgrade php-odbcUpgrade php8.4-odbcUpgrade php8.4-mysqlnd-debuginfoUpgrade php-xml-debuginfoUpgrade php-pecl-xdebug3-debuginfoUpgrade php-pecl-xdebug3Upgrade php-enchant-debuginfoUpgrade php-embeddedUpgrade php-develUpgrade libzipUpgrade php8.4-intlUpgrade php8.4-dbaUpgrade php-pecl-apcu-develUpgrade php-fpmUpgrade php-mysqlnd-debuginfoUpgrade php-gd-debuginfoUpgrade php8.4-opcache-debuginfoUpgrade php8.4-fpmUpgrade php-embedded-debuginfoUpgrade php-pecl-xdebug-debugsourceUpgrade php-pecl-xdebug-debuginfoUpgrade php-pecl-rrd-debuginfoUpgrade php8.4-soapUpgrade php8.4-mbstring-debuginfoUpgrade php-ldapUpgrade php-json-debuginfoUpgrade php-ffi-debuginfoUpgrade php-dbgUpgrade php-pecl-zipUpgrade php-pdoUpgrade php8.4-snmpUpgrade php8.4-ffiUpgrade php8.4-commonUpgrade php-pecl-xdebug3-debugsourceUpgrade php-pecl-zip-debugsourceUpgrade php-mbstring-debuginfo | Jun 2, 2026 | Jun 1, 2026 |
| Ubuntu | — | Upgrade php7.0-pgsql (Ubuntu Pro)Upgrade libphp7.0-embed (Ubuntu Pro)Upgrade php7.0-cli (Ubuntu Pro)Upgrade php8.3Upgrade php7.0-soap (Ubuntu Pro)Upgrade php7.0-fpm (Ubuntu Pro)Upgrade php7.0-common (Ubuntu Pro)Upgrade php8.5Upgrade php7.0-phpdbg (Ubuntu Pro)Upgrade php8.4Upgrade libapache2-mod-php7.0 (Ubuntu Pro)Upgrade php8.1Upgrade php7.0-cgi (Ubuntu Pro) | May 28, 2026 | May 28, 2026 |
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