PHP up to 5.6.24/7.0.9 ext/wddx/wddx.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability was found in PHP up to 5.6.24/7.0.9 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is an unknown code of the file ext/wddx/wddx.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

ext/wddx/wddx.c in PHP before 5.6.25 and 7.x before 7.0.10 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly have unspecified other impact via an invalid wddxPacket XML document that is mishandled in a wddx_deserialize call, as demonstrated by a stray element inside a boolean element, leading to incorrect pop processing.

The weakness was released 09/12/2016 (Website). The advisory is shared at openwall.com. This vulnerability is known as CVE-2016-7132 since 09/02/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 900012 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169168 (SUSE Enterprise Linux Security Update for php53 (SUSE-SU-2016:2328-1)).

Upgrading to version 5.6.25 or 7.0.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (900012). Entries connected to this vulnerability are available at 3695, 5786, 5794 and 9021.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 900012
Nessus File: 🔍

OpenVAS ID: 54857
OpenVAS Name: Ubuntu Update for php7.0 USN-3095-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: PHP 5.6.25/7.0.10
Patch: github.com

Timelineinfo

08/10/2016 🔍
09/02/2016 +23 days 🔍
09/11/2016 +9 days 🔍
09/12/2016 +1 days 🔍
09/12/2016 +0 days 🔍
09/15/2022 +2194 days 🔍

Sourcesinfo

Product: php.org

Advisory: 72799
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7132 (🔍)
OVAL: 🔍

SecurityTracker: 1036680
SecurityFocus: 92767 - PHP CVE-2016-7132 NULL pointer Dereference Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/12/2016 17:53
Updated: 09/15/2022 19:58
Changes: 09/12/2016 17:53 (60), 04/15/2019 16:26 (12), 09/15/2022 19:51 (5), 09/15/2022 19:58 (1)
Complete: 🔍

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