The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-phphuawei-euleros-2_0_sp8-upgrade-php-clihuawei-euleros-2_0_sp8-upgrade-php-commonhuawei-euleros-2_0_sp8-upgrade-php-fpmhuawei-euleros-2_0_sp8-upgrade-php-gdhuawei-euleros-2_0_sp8-upgrade-php-ldaphuawei-euleros-2_0_sp8-upgrade-php-odbchuawei-euleros-2_0_sp8-upgrade-php-pdohuawei-euleros-2_0_sp8-upgrade-php-processhuawei-euleros-2_0_sp8-upgrade-php-recodehuawei-euleros-2_0_sp8-upgrade-php-soaphuawei-euleros-2_0_sp8-upgrade-php-xmlhuawei-euleros-2_0_sp8-upgrade-php-xmlrpc | Oct 11, 2022 | May 12, 2017 | |
| Php | php-upgrade-7_1_6 | May 30, 2017 | May 12, 2017 | |
| Redhat_linux | no-fix-redhat-rpm-package | Jul 9, 2025 | May 12, 2017 | |
| Rocky_linux | rocky-upgrade-libziprocky-upgrade-libzip-debuginforocky-upgrade-libzip-debugsourcerocky-upgrade-libzip-develrocky-upgrade-libzip-toolsrocky-upgrade-libzip-tools-debuginforocky-upgrade-phprocky-upgrade-php-bcmathrocky-upgrade-php-bcmath-debuginforocky-upgrade-php-clirocky-upgrade-php-cli-debuginforocky-upgrade-php-commonrocky-upgrade-php-common-debuginforocky-upgrade-php-dbarocky-upgrade-php-dba-debuginforocky-upgrade-php-dbgrocky-upgrade-php-dbg-debuginforocky-upgrade-php-debuginforocky-upgrade-php-debugsourcerocky-upgrade-php-develrocky-upgrade-php-embeddedrocky-upgrade-php-embedded-debuginforocky-upgrade-php-enchantrocky-upgrade-php-enchant-debuginforocky-upgrade-php-ffirocky-upgrade-php-ffi-debuginforocky-upgrade-php-fpmrocky-upgrade-php-fpm-debuginforocky-upgrade-php-gdrocky-upgrade-php-gd-debuginforocky-upgrade-php-gmprocky-upgrade-php-gmp-debuginforocky-upgrade-php-intlrocky-upgrade-php-intl-debuginforocky-upgrade-php-jsonrocky-upgrade-php-json-debuginforocky-upgrade-php-ldaprocky-upgrade-php-ldap-debuginforocky-upgrade-php-mbstringrocky-upgrade-php-mbstring-debuginforocky-upgrade-php-mysqlndrocky-upgrade-php-mysqlnd-debuginforocky-upgrade-php-odbcrocky-upgrade-php-odbc-debuginforocky-upgrade-php-opcacherocky-upgrade-php-opcache-debuginforocky-upgrade-php-pdorocky-upgrade-php-pdo-debuginforocky-upgrade-php-pecl-apcurocky-upgrade-php-pecl-apcu-debuginforocky-upgrade-php-pecl-apcu-debugsourcerocky-upgrade-php-pecl-apcu-develrocky-upgrade-php-pecl-rrdrocky-upgrade-php-pecl-rrd-debuginforocky-upgrade-php-pecl-rrd-debugsourcerocky-upgrade-php-pecl-xdebugrocky-upgrade-php-pecl-xdebug-debuginforocky-upgrade-php-pecl-xdebug-debugsourcerocky-upgrade-php-pecl-ziprocky-upgrade-php-pecl-zip-debuginforocky-upgrade-php-pecl-zip-debugsourcerocky-upgrade-php-pgsqlrocky-upgrade-php-pgsql-debuginforocky-upgrade-php-processrocky-upgrade-php-process-debuginforocky-upgrade-php-snmprocky-upgrade-php-snmp-debuginforocky-upgrade-php-soaprocky-upgrade-php-soap-debuginforocky-upgrade-php-xmlrocky-upgrade-php-xml-debuginforocky-upgrade-php-xmlrpcrocky-upgrade-php-xmlrpc-debuginfo | Dec 29, 2025 | Dec 27, 2025 | |
| Suse | — | suse-upgrade-apache2-mod_php7suse-upgrade-apache2-mod_php72suse-upgrade-apache2-mod_php74suse-upgrade-php7suse-upgrade-php7-bcmathsuse-upgrade-php7-bz2suse-upgrade-php7-calendarsuse-upgrade-php7-ctypesuse-upgrade-php7-curlsuse-upgrade-php7-dbasuse-upgrade-php7-develsuse-upgrade-php7-domsuse-upgrade-php7-embedsuse-upgrade-php7-enchantsuse-upgrade-php7-exifsuse-upgrade-php7-fastcgisuse-upgrade-php7-fileinfosuse-upgrade-php7-firebirdsuse-upgrade-php7-fpmsuse-upgrade-php7-ftpsuse-upgrade-php7-gdsuse-upgrade-php7-gettextsuse-upgrade-php7-gmpsuse-upgrade-php7-iconvsuse-upgrade-php7-intlsuse-upgrade-php7-jsonsuse-upgrade-php7-ldapsuse-upgrade-php7-mbstringsuse-upgrade-php7-mysqlsuse-upgrade-php7-odbcsuse-upgrade-php7-opcachesuse-upgrade-php7-opensslsuse-upgrade-php7-pcntlsuse-upgrade-php7-pdosuse-upgrade-php7-pearsuse-upgrade-php7-pear-archive_tarsuse-upgrade-php7-pgsqlsuse-upgrade-php7-pharsuse-upgrade-php7-posixsuse-upgrade-php7-readlinesuse-upgrade-php7-shmopsuse-upgrade-php7-snmpsuse-upgrade-php7-soapsuse-upgrade-php7-socketssuse-upgrade-php7-sodiumsuse-upgrade-php7-sqlitesuse-upgrade-php7-sysvmsgsuse-upgrade-php7-sysvsemsuse-upgrade-php7-sysvshmsuse-upgrade-php7-testsuse-upgrade-php7-tidysuse-upgrade-php7-tokenizersuse-upgrade-php7-wddxsuse-upgrade-php7-xmlreadersuse-upgrade-php7-xmlrpcsuse-upgrade-php7-xmlwritersuse-upgrade-php7-xslsuse-upgrade-php7-zipsuse-upgrade-php7-zlibsuse-upgrade-php72suse-upgrade-php72-bcmathsuse-upgrade-php72-bz2suse-upgrade-php72-calendarsuse-upgrade-php72-ctypesuse-upgrade-php72-curlsuse-upgrade-php72-dbasuse-upgrade-php72-develsuse-upgrade-php72-domsuse-upgrade-php72-enchantsuse-upgrade-php72-exifsuse-upgrade-php72-fastcgisuse-upgrade-php72-fileinfosuse-upgrade-php72-fpmsuse-upgrade-php72-ftpsuse-upgrade-php72-gdsuse-upgrade-php72-gettextsuse-upgrade-php72-gmpsuse-upgrade-php72-iconvsuse-upgrade-php72-imapsuse-upgrade-php72-intlsuse-upgrade-php72-jsonsuse-upgrade-php72-ldapsuse-upgrade-php72-mbstringsuse-upgrade-php72-mysqlsuse-upgrade-php72-odbcsuse-upgrade-php72-opcachesuse-upgrade-php72-opensslsuse-upgrade-php72-pcntlsuse-upgrade-php72-pdosuse-upgrade-php72-pearsuse-upgrade-php72-pear-archive_tarsuse-upgrade-php72-pgsqlsuse-upgrade-php72-pharsuse-upgrade-php72-posixsuse-upgrade-php72-pspellsuse-upgrade-php72-readlinesuse-upgrade-php72-shmopsuse-upgrade-php72-snmpsuse-upgrade-php72-soapsuse-upgrade-php72-socketssuse-upgrade-php72-sodiumsuse-upgrade-php72-sqlitesuse-upgrade-php72-sysvmsgsuse-upgrade-php72-sysvsemsuse-upgrade-php72-sysvshmsuse-upgrade-php72-tidysuse-upgrade-php72-tokenizersuse-upgrade-php72-wddxsuse-upgrade-php72-xmlreadersuse-upgrade-php72-xmlrpcsuse-upgrade-php72-xmlwritersuse-upgrade-php72-xslsuse-upgrade-php72-zipsuse-upgrade-php72-zlibsuse-upgrade-php74suse-upgrade-php74-bcmathsuse-upgrade-php74-bz2suse-upgrade-php74-calendarsuse-upgrade-php74-ctypesuse-upgrade-php74-curlsuse-upgrade-php74-dbasuse-upgrade-php74-develsuse-upgrade-php74-domsuse-upgrade-php74-enchantsuse-upgrade-php74-exifsuse-upgrade-php74-fastcgisuse-upgrade-php74-fileinfosuse-upgrade-php74-fpmsuse-upgrade-php74-ftpsuse-upgrade-php74-gdsuse-upgrade-php74-gettextsuse-upgrade-php74-gmpsuse-upgrade-php74-iconvsuse-upgrade-php74-intlsuse-upgrade-php74-jsonsuse-upgrade-php74-ldapsuse-upgrade-php74-mbstringsuse-upgrade-php74-mysqlsuse-upgrade-php74-odbcsuse-upgrade-php74-opcachesuse-upgrade-php74-opensslsuse-upgrade-php74-pcntlsuse-upgrade-php74-pdosuse-upgrade-php74-pgsqlsuse-upgrade-php74-pharsuse-upgrade-php74-posixsuse-upgrade-php74-readlinesuse-upgrade-php74-shmopsuse-upgrade-php74-snmpsuse-upgrade-php74-soapsuse-upgrade-php74-socketssuse-upgrade-php74-sodiumsuse-upgrade-php74-sqlitesuse-upgrade-php74-sysvmsgsuse-upgrade-php74-sysvsemsuse-upgrade-php74-sysvshmsuse-upgrade-php74-tidysuse-upgrade-php74-tokenizersuse-upgrade-php74-xmlreadersuse-upgrade-php74-xmlrpcsuse-upgrade-php74-xmlwritersuse-upgrade-php74-xslsuse-upgrade-php74-zipsuse-upgrade-php74-zlib | Feb 22, 2022 | May 12, 2017 |
| Ubuntu | ubuntu-pro-upgrade-php7-0-cgiubuntu-pro-upgrade-php7-0-cliubuntu-pro-upgrade-php7-0-fpmubuntu-upgrade-php7-2-cgiubuntu-upgrade-php7-2-cliubuntu-upgrade-php7-2-fpmubuntu-upgrade-php7-4-cgiubuntu-upgrade-php7-4-cliubuntu-upgrade-php7-4-fpmubuntu-upgrade-php8-0-cgiubuntu-upgrade-php8-0-cliubuntu-upgrade-php8-0-fpm | Feb 23, 2022 | May 12, 2017 |
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