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Test ID:1.3.6.1.4.1.25623.1.0.812520
Category:Web application abuses
Title:PHP 'PHP-FPM' Denial of Service Vulnerability - Linux
Summary:PHP is prone to a denial of service (DoS) vulnerability.
Description:Summary:
PHP is prone to a denial of service (DoS) vulnerability.

Vulnerability Insight:
The flaw exists due to the php-fpm master
process restarts a child process in an endless loop when using program
execution functions with a non-blocking STDIN stream.

Vulnerability Impact:
Successfully exploitation will allow an
attacker 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.

Affected Software/OS:
PHP versions 5.x up to and including 5.6.36. All 7.0.x versions,
7.1.x before 7.1.20, 7.2.x before 7.2.8 and 7.3.x before 7.3.0alpha3 on Windows.

Solution:
Update to PHP 7.1.20, 7.2.8 or 7.3.0alpha3.

CVSS Score:
6.8

CVSS Vector:
AV:N/AC:L/Au:S/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-9253
https://bugs.php.net/bug.php?id=70185
https://bugs.php.net/bug.php?id=75968
https://www.futureweb.at/security/CVE-2015-9253/
https://usn.ubuntu.com/3766-1/
https://usn.ubuntu.com/4279-1/
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