Apple Mac OS X up to 10.11.0 apache_mod_php null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in Apple Mac OS X up to 10.11.0 (Operating System). Affected is some unknown functionality of the component apache_mod_php. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.
The weakness was published 10/21/2015 as HT205375 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2015-6838 since 09/08/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit 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 vulnerability database at Tenable (89967). Similar entries are available at 67396, 67398, 67420 and 67724.
Product
Type
Vendor
Name
Version
License
Support
- end of life
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Mac OS X 10.11.1
Timeline
09/06/2015 🔍09/08/2015 🔍
10/21/2015 🔍
10/21/2015 🔍
10/21/2015 🔍
10/22/2015 🔍
10/22/2015 🔍
05/16/2016 🔍
06/24/2022 🔍
Sources
Vendor: apple.comAdvisory: HT205375
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-6838 (🔍)
OVAL: 🔍
SecurityTracker: 1033548
Vulnerability Center: 53769 - Apple MacOS X Remote Code Execution due to PHP Issue - CVE-2015-6838, High
SecurityFocus: 76733 - PHP 'xsltprocessor.c' Null Pointer Deference Denial of Service Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍
Entry
Created: 10/22/2015 11:27Updated: 06/24/2022 10:08
Changes: 10/22/2015 11:27 (80), 02/15/2018 11:12 (6), 06/24/2022 10:03 (5), 06/24/2022 10:08 (1)
Complete: 🔍
Cache ID: 18:A5D:103
No comments yet. Languages: en.
Please log in to comment.