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PHP Vulnerability: CVE-2015-9253

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PHP Vulnerability: CVE-2015-9253

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
02/19/2018
Created
07/25/2018
Added
04/30/2018
Modified
07/21/2021

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)

  • php-upgrade-7_1_20
  • php-upgrade-7_2_8

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