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Ubuntu: (Multiple Advisories) (CVE-2015-9253): PHP regression

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Ubuntu: (Multiple Advisories) (CVE-2015-9253): PHP regression

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
02/19/2018
Created
03/19/2019
Added
09/27/2018
Modified
03/02/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-libapache2-mod-php5
  • ubuntu-upgrade-libapache2-mod-php7-0
  • ubuntu-upgrade-libapache2-mod-php7-2
  • ubuntu-upgrade-libapache2-mod-php7-3
  • ubuntu-upgrade-php5-cgi
  • ubuntu-upgrade-php5-cli
  • ubuntu-upgrade-php5-fpm
  • ubuntu-upgrade-php7-0-cgi
  • ubuntu-upgrade-php7-0-cli
  • ubuntu-upgrade-php7-0-fpm
  • ubuntu-upgrade-php7-2-cgi
  • ubuntu-upgrade-php7-2-cli
  • ubuntu-upgrade-php7-2-fpm
  • ubuntu-upgrade-php7-3-cgi
  • ubuntu-upgrade-php7-3-cli
  • ubuntu-upgrade-php7-3-fpm

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