CVE-2016-9936

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

04/01/2017

Last modified:

12/04/2025

Description

The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

7.50

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:php:php:7.0.0:::::::*
cpe:2.3:a:php:php:7.0.1:::::::*
cpe:2.3:a:php:php:7.0.2:::::::*
cpe:2.3:a:php:php:7.0.3:::::::*
cpe:2.3:a:php:php:7.0.4:::::::*
cpe:2.3:a:php:php:7.0.5:::::::*
cpe:2.3:a:php:php:7.0.6:::::::*
cpe:2.3:a:php:php:7.0.7:::::::*
cpe:2.3:a:php:php:7.0.8:::::::*
cpe:2.3:a:php:php:7.0.9:::::::*
cpe:2.3:a:php:php:7.0.10:::::::*
cpe:2.3:a:php:php:7.0.11:::::::*
cpe:2.3:a:php:php:7.0.12:::::::*
cpe:2.3:a:php:php:7.0.13:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:php:php:7.0.0:::::::*
cpe:2.3:a:php:php:7.0.1:::::::*
cpe:2.3:a:php:php:7.0.2:::::::*
cpe:2.3:a:php:php:7.0.3:::::::*
cpe:2.3:a:php:php:7.0.4:::::::*
cpe:2.3:a:php:php:7.0.5:::::::*
cpe:2.3:a:php:php:7.0.6:::::::*
cpe:2.3:a:php:php:7.0.7:::::::*
cpe:2.3:a:php:php:7.0.8:::::::*
cpe:2.3:a:php:php:7.0.9:::::::*
cpe:2.3:a:php:php:7.0.10:::::::*
cpe:2.3:a:php:php:7.0.11:::::::*
cpe:2.3:a:php:php:7.0.12:::::::*
cpe:2.3:a:php:php:7.0.13:::::::*

CVE-2016-9936

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools