CVE-2016-7132

php: wddx_deserialize null dereference in php_wddx_pop_element

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

ext/wddx/wddx.c en PHP en versiones anteriores a 5.6.25 y 7.x en versiones anteriores a 7.0.10 permite a atacantes remotos provocar una denegación de servicio (referencia a puntero NULL y caída de aplicación) o tener otro posible impacto no especificado a través de un documento XML wddxPacket no válido que es manejado incorrectamente en una llamada wddx_deserialize, según lo demostrado mediante un elemento stray dentro de un elemento booleano, que conduce a un procesamiento pop incorrecto.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. The rh-php56 packages provide a recent stable release of PHP with PEAR 1.9.5 and enhanced language features including constant expressions, variadic functions, arguments unpacking, and the interactive debuger. The memcache, mongo, and XDebug extensions are also included. The rh-php56 Software Collection has been upgraded to version 5.6.25, which provides a number of bug fixes and enhancements over the previous version. Security Fixes in the rh-php56-php component have been added.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-09-02 CVE Reserved
2016-09-10 CVE Published
2024-08-06 CVE Updated
2024-08-06 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (13)

URL	Tag	Source
http://openwall.com/lists/oss-security/2016/09/02/9	Mailing List
http://www.php.net/ChangeLog-5.php	Release Notes
http://www.php.net/ChangeLog-7.php	Release Notes
http://www.securityfocus.com/bid/92767	Third Party Advisory
http://www.securitytracker.com/id/1036680	Third Party Advisory
https://www.tenable.com/security/tns-2016-19	Third Party Advisory

URL	Date	SRC
https://bugs.php.net/bug.php?id=72799	2024-08-06

URL	Date	SRC
https://github.com/php/php-src/commit/0c8a2a2cd1056b7dc403eacb5d2c0eec6ce47c6f	2020-11-16
https://github.com/php/php-src/commit/a14fdb9746262549bbbb96abb87338bacd147e1b?w=1	2020-11-16

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-2750.html	2020-11-16
https://security.gentoo.org/glsa/201611-22	2020-11-16
https://access.redhat.com/security/cve/CVE-2016-7132	2016-11-15
https://bugzilla.redhat.com/show_bug.cgi?id=1374711	2016-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.0 Search vendor "Php" for product "Php" and version "7.0.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.1 Search vendor "Php" for product "Php" and version "7.0.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.2 Search vendor "Php" for product "Php" and version "7.0.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.3 Search vendor "Php" for product "Php" and version "7.0.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.4 Search vendor "Php" for product "Php" and version "7.0.4"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.5 Search vendor "Php" for product "Php" and version "7.0.5"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.6 Search vendor "Php" for product "Php" and version "7.0.6"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.7 Search vendor "Php" for product "Php" and version "7.0.7"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.8 Search vendor "Php" for product "Php" and version "7.0.8"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.9 Search vendor "Php" for product "Php" and version "7.0.9"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				<= 5.6.24 Search vendor "Php" for product "Php" and version " <= 5.6.24"		-		Affected