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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-02-19T19:00:00

Updated: 2024-08-06T08:43:42.253Z

Reserved: 2018-02-19T00:00:00

Link: CVE-2015-9253

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-02-19T19:29:00.483

Modified: 2020-02-19T00:15:10.490

Link: CVE-2015-9253

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-08-03T00:00:00Z

Links: CVE-2015-9253 - Bugzilla