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cve[email protected]CVE-2015-9253
HistoryFeb 19, 2018 - 7:29 p.m.

CVE-2015-9253

2018-02-1919:29:00
CWE-400
web.nvd.nist.gov
811
php
php 7.3
php 7.2
php 7.1
security issue
cve-2015-9253
cpu consumption
disk space consumption
non-blocking stdin stream

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.2%

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.

Affected configurations

NVD
Node
phpphpRange<7.1.20
OR
phpphpRange7.2.07.2.8
OR
phpphpMatch7.3.0alpha1
OR
phpphpMatch7.3.0alpha2

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.2%