An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade php7 | Oct 1, 2024 | Feb 19, 2018 |
| Php | — | Upgrade to PHP version 7.1.20Upgrade to PHP version 7.2.8 | Apr 30, 2018 | Feb 19, 2018 |
| Suse | — | Upgrade php72-pharUpgrade php7-calendarUpgrade php72-posixUpgrade php72-intlUpgrade php72-xslUpgrade php72-mbstringUpgrade php7-gdUpgrade php7-fileinfoUpgrade php72-calendarUpgrade php7-xmlrpcUpgrade php72-exifUpgrade php72-fileinfoUpgrade php72-imapUpgrade php7-pearUpgrade php72-pcntlUpgrade php72-dbaUpgrade php72-sysvshmUpgrade php7-dbaUpgrade php72-ctypeUpgrade php72-pearUpgrade php7-zipUpgrade php7-sodiumUpgrade php72-opcacheUpgrade php72-wddxUpgrade php7-bz2Upgrade apache2-mod_php72Upgrade php72-sysvmsgUpgrade php7-opcacheUpgrade php7-xmlreaderUpgrade php7-sysvshmUpgrade php7-intlUpgrade php72-develUpgrade php7-domUpgrade php7-mysqlUpgrade php72-gdUpgrade php7-gmpUpgrade php72-shmopUpgrade php72-bz2Upgrade php72-enchantUpgrade php7-curlUpgrade php7-xslUpgrade php72-opensslUpgrade php72-gmpUpgrade php7-sysvmsgUpgrade php72-zlibUpgrade php72-iconvUpgrade php72-pgsqlUpgrade php7-shmopUpgrade php7-ldapUpgrade php7-tidyUpgrade php7-readlineUpgrade php7-sqliteUpgrade php72-sqliteUpgrade php7-soapUpgrade php72-fastcgiUpgrade php7-snmpUpgrade php72-bcmathUpgrade php72-sysvsemUpgrade php72-xmlrpcUpgrade php7-pcntlUpgrade php72-fpmUpgrade php7-exifUpgrade php7-jsonUpgrade php7-sysvsemUpgrade php7-tokenizerUpgrade php7-iconvUpgrade php72-readlineUpgrade php72-gettextUpgrade php72-ldapUpgrade apache2-mod_php7Upgrade php7-ctypeUpgrade php7Upgrade php7-pgsqlUpgrade php72-soapUpgrade php72-xmlreaderUpgrade php72-curlUpgrade php72-tokenizerUpgrade php72-pspellUpgrade php7-pdoUpgrade php7-mbstringUpgrade php72-sodiumUpgrade php72-pear-archive_tarUpgrade php7-ftpUpgrade php7-socketsUpgrade php7-fpmUpgrade php72-zipUpgrade php72-domUpgrade php72-pdoUpgrade php7-gettextUpgrade php7-pear-archive_tarUpgrade php7-bcmathUpgrade php72-jsonUpgrade php72-xmlwriterUpgrade php7-fastcgiUpgrade php7-wddxUpgrade php7-enchantUpgrade php72Upgrade php7-xmlwriterUpgrade php7-zlibUpgrade php7-develUpgrade php72-mysqlUpgrade php72-tidyUpgrade php72-odbcUpgrade php72-socketsUpgrade php72-snmpUpgrade php7-pharUpgrade php7-opensslUpgrade php72-ftpUpgrade php7-odbcUpgrade php7-posix | Feb 26, 2022 | Feb 19, 2018 |
| Ubuntu | — | Upgrade php7.2-fpmUpgrade php5-cgi (Ubuntu Pro)Upgrade php7.0-cliUpgrade libapache2-mod-php7.2Upgrade php5-fpm (Ubuntu Pro)Upgrade php7.0-fpm (Ubuntu Pro)Upgrade php7.3-cliUpgrade php7.0-cgi (Ubuntu Pro)Upgrade php7.2-cgiUpgrade libapache2-mod-php7.0Upgrade php7.0-cgiUpgrade libapache2-mod-php5Upgrade php5-fpmUpgrade php5-cgiUpgrade libapache2-mod-php5 (Ubuntu Pro)Upgrade php7.3-cgiUpgrade php5-cli (Ubuntu Pro)Upgrade libapache2-mod-php7.3Upgrade php7.3-fpmUpgrade php7.0-fpmUpgrade php7.0-cli (Ubuntu Pro)Upgrade php5-cliUpgrade php7.2-cli | Sep 27, 2018 | Feb 19, 2018 |
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