Apple Mac OS X up to 10.11.0 apache_mod_php 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, which was classified as critical, has been found in Apple Mac OS X up to 10.11.0. This affects an unknown function of the component apache_mod_php. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2015-6837. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Mac OS X up to 10.11.0 (Operating System). This issue affects an unknown functionality of the component apache_mod_php. 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 weakness was shared 10/21/2015 as HT205375 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2015-6837 since 09/08/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Multiple vulnerabilities existed in PHP versions prior to 5.5.29 and 5.4.45. These were addressed by updating PHP to versions 5.5.29 and 5.4.45.

The vulnerability scanner Nessus provides a plugin with the ID 89967 (Amazon Linux AMI : php54 (ALAS-2016-670)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11628 (PHP Versions Prior to 5.6.13/5.5.29/5.4.45 Multiple Vulnerabilities).

Upgrading to version 10.11.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (89967), SecurityFocus (BID 76738†) and Vulnerability Center (SBV-53768†). The entries VDB-67396, VDB-67398, VDB-67420 and VDB-67724 are related to this item. Statistical analysis made it clear that VulDB provides the best quality 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: 🔍
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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: 89967
Nessus Name: Amazon Linux AMI : php54 (ALAS-2016-670)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703358
OpenVAS Name: Debian Security Advisory DSA 3358-1 (php5 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.1

Timelineinfo

09/08/2015 🔍
10/21/2015 +43 days 🔍
10/21/2015 +0 days 🔍
10/21/2015 +0 days 🔍
10/22/2015 +1 days 🔍
10/22/2015 +0 days 🔍
05/16/2016 +207 days 🔍
06/24/2022 +2230 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT205375
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6837 (🔍)
GCVE (CVE): GCVE-0-2015-6837
GCVE (VulDB): GCVE-100-78779

OVAL: 🔍

SecurityFocus: 76738
SecurityTracker: 1033548
Vulnerability Center: 53768 - Apple MacOS X Remote Code Execution due to PHP Issue - CVE-2015-6837, High

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 10/22/2015 11:27
Updated: 06/24/2022 10:01
Changes: 10/22/2015 11:27 (79), 02/15/2018 11:11 (4), 06/24/2022 10:00 (5), 06/24/2022 10:01 (1)
Complete: 🔍
Cache ID: 216:885:103

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