PHP up to 5.6.28/7.0.13 wddxPacket XML Document ext/wddx/wddx.c php_wddx_push_element out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in PHP up to 5.6.28/7.0.13. Affected by this vulnerability is the function php_wddx_push_element of the file ext/wddx/wddx.c of the component wddxPacket XML Document Handler. The manipulation results in out-of-bounds. This vulnerability is known as CVE-2016-9935. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in PHP up to 5.6.28/7.0.13 (Programming Language Software). Affected is the function php_wddx_push_element of the file ext/wddx/wddx.c of the component wddxPacket XML Document Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The php_wddx_push_element function in ext/wddx/wddx.c in PHP before 5.6.29 and 7.x before 7.0.14 allows remote attackers to cause a denial of service (out-of-bounds read and memory corruption) or possibly have unspecified other impact via an empty boolean element in a wddxPacket XML document.

The bug was discovered 12/12/2016. The weakness was published 01/04/2017 (Website). The advisory is shared for download at lists.opensuse.org. This vulnerability is traded as CVE-2016-9935 since 12/12/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 23 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 900018 , 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 370348 (Apple Mac OS X Security Update Sierra 10.12.4, El Capitan 2017-001 and Yosemite 2017-001 Not Installed (APPLE-SA-2017-03-27-3)).

Upgrading to version 5.6.29 or 7.0.14 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (900018) and SecurityFocus (BID 94846†). Similar entries are available at VDB-3695, VDB-5786, VDB-5794 and VDB-9021. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 900018
Nessus File: 🔍

OpenVAS ID: 703737
OpenVAS Name: Debian Security Advisory DSA 3737-1 (php5 - security update)
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 5.6.29/7.0.14
Patch: github.com

Timelineinfo

12/12/2016 🔍
12/12/2016 +0 days 🔍
12/12/2016 +0 days 🔍
01/04/2017 +23 days 🔍
01/04/2017 +0 days 🔍
01/05/2017 +1 days 🔍
10/27/2022 +2121 days 🔍

Sourcesinfo

Product: php.org

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

CVE: CVE-2016-9935 (🔍)
GCVE (CVE): GCVE-0-2016-9935
GCVE (VulDB): GCVE-100-95040

OVAL: 🔍

SecurityFocus: 94846 - PHP 'ext/wddx/wddx.c' Denial of Service Vulnerability
OSVDB: - CVE-2016-9935 - PHP - Memory Corruption Issue

See also: 🔍

Entryinfo

Created: 01/05/2017 12:57
Updated: 10/27/2022 16:06
Changes: 01/05/2017 12:57 (77), 10/27/2022 16:06 (5)
Complete: 🔍
Cache ID: 216:EC4:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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