CVE-2015-9253

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.

Weakness classification

• CWE-400: Uncontrolled Resource Consumption

Primary references

• cve@mitre.org — Exploit, Issue Tracking, Vendor Advisory
• cve@mitre.org — Exploit, Issue Tracking, Vendor Advisory
• cve@mitre.org — Exploit, Issue Tracking, Vendor Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Patch, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org
• cve@mitre.org — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory