CVE-2015-9253 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
Source:
MITRE
Description Last Modified:
07/10/2018
View Analysis Description
Analysis Description
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.
Source:
MITRE
Description Last Modified:
02/19/2018
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
6.5 MEDIUM
Vector:
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
(V3 legend)
Impact Score:
3.6
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
6.8 MEDIUM
Vector:
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
(V2 legend)
Impact Subscore:
6.9
Exploitability Subscore:
8.0
Access Vector (AV):
Network
Access Complexity (AC):
Low
Authentication (AU):
Single
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
Complete
Additional Information:
Allows disruption of service
References to Advisories, Solutions, and Tools
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Technical Details
Vulnerability Type
(View All)
- Uncontrolled Resource Consumption ('Resource Exhaustion') (CWE-400)
Change History
5 change records found
- show changes
CVE Modified by MITRE -
9/18/2018 6:29:00 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://usn.ubuntu.com/3766-1/ [No Types Assigned] |
CVE Modified by MITRE -
7/25/2018 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://github.com/php/php-src/blob/PHP-7.1.20/NEWS#L20-L22 [No Types Assigned] |
CVE Modified by MITRE -
7/10/2018 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
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. |
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. |
| Added |
Reference |
|
https://bugs.php.net/bug.php?id=73342https://github.com/php/php-src/pull/3287 [No Types Assigned] |
| Added |
Reference |
|
https://github.com/php/php-src/commit/69dee5c732fe982c82edb17d0dbc3e79a47748d8 [No Types Assigned] |
Initial Analysis -
3/18/2018 6:59:39 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions up to (including) 7.2.2 |
| Added |
CVSS V2 |
|
(AV:N/AC:L/Au:S/C:N/I:N/A:C) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Added |
CWE |
|
CWE-400 |
| Changed |
Reference Type |
https://bugs.php.net/bug.php?id=70185 No Types Assigned |
https://bugs.php.net/bug.php?id=70185 Issue Tracking, Vendor Advisory |
| Changed |
Reference Type |
https://bugs.php.net/bug.php?id=75968 No Types Assigned |
https://bugs.php.net/bug.php?id=75968 Issue Tracking, Vendor Advisory |
| Changed |
Reference Type |
https://www.futureweb.at/security/CVE-2015-9253/ No Types Assigned |
https://www.futureweb.at/security/CVE-2015-9253/ Exploit, Third Party Advisory |
CVE Modified by MITRE -
3/2/2018 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://www.futureweb.at/security/CVE-2015-9253/ [No Types Assigned] |
| Removed |
Reference |
https://www.futureweb.at/Futureweb-OG-php-fpm-master-process-restarts-child-process-in-a_pid,54177,type,firmeninfo.html [No Types Assigned] |
|
Quick Info
CVE Dictionary Entry:
CVE-2015-9253
NVD Published Date:
02/19/2018
NVD Last Modified:
09/18/2018
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