PHP up to 7.0.14/7.1.0 ext/wddx/wddx.c php_wddx_pop_element null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP up to 7.0.14/7.1.0. It has been rated as problematic. This vulnerability affects the function php_wddx_pop_element of the file ext/wddx/wddx.c. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2016-10162. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in PHP up to 7.0.14/7.1.0 (Programming Language Software). This issue affects the function php_wddx_pop_element of the file ext/wddx/wddx.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

The php_wddx_pop_element function in ext/wddx/wddx.c in PHP 7.0.x before 7.0.15 and 7.1.x before 7.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an inapplicable class name in a wddxPacket XML document, leading to mishandling in a wddx_deserialize call.

The bug was discovered 01/19/2017. The weakness was shared 01/24/2017 (Website). It is possible to read the advisory at php.net. The identification of this vulnerability is CVE-2016-10162 since 01/24/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 96800 (PHP 7.0.x < 7.0.15 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169771 (SUSE Enterprise Linux Security Update for php7 (SUSE-SU-2017:0534-1)).

Upgrading to version 7.0.15 or 7.1.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96800) and SecurityFocus (BID 95668†). The entries VDB-80326, VDB-80327, VDB-83183 and VDB-83184 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 96800
Nessus Name: PHP 7.0.x < 7.0.15 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103043
OpenVAS Name: PHP Denial of Service Vulnerability - 03 - Jan17 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 7.0.15/7.1.1
Patch: github.com

Timelineinfo

01/19/2017 🔍
01/19/2017 +0 days 🔍
01/19/2017 +0 days 🔍
01/24/2017 +5 days 🔍
01/24/2017 +0 days 🔍
01/24/2017 +0 days 🔍
01/25/2017 +1 days 🔍
01/26/2017 +1 days 🔍
05/14/2026 +3395 days 🔍

Sourcesinfo

Product: php.org

Advisory: RHSA-2018:1296
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10162 (🔍)
GCVE (CVE): GCVE-0-2016-10162
GCVE (VulDB): GCVE-100-95879
SecurityFocus: 95668 - PHP 'wddx.c' NULL Pointer Dereference Denial of Service Vulnerability
OSVDB: - CVE-2016-10162 - PHP - Denial of Service Issue
SecurityTracker: 1037659

See also: 🔍

Entryinfo

Created: 01/25/2017 10:40
Updated: 05/14/2026 19:09
Changes: 01/25/2017 10:40 (73), 07/31/2020 07:24 (7), 11/03/2022 11:12 (5), 05/14/2026 19:09 (17)
Complete: 🔍
Cache ID: 216::103

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