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FS#57579 - [php-fpm] CVE-2015-9253

Attached to Project: Arch Linux
Opened by Karol Babioch (kbabioch) - Tuesday, 20 February 2018, 10:29 GMT
Last edited by Doug Newgard (Scimmia) - Tuesday, 20 February 2018, 14:30 GMT
Task Type Bug Report
Category Security
Status Assigned
Assigned To Pierre Schmitz (Pierre)
Levente Polyak (anthraxx)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No


An issue was discovered in PHP through 7.2.2. 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.

This task depends upon