Apple Mac OS X up to 10.11.5 OpenSSL memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple Mac OS X up to 10.11.5. Impacted is an unknown function of the component OpenSSL. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2016-2176. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.11.5 (Operating System). This vulnerability affects an unknown functionality of the component OpenSSL. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 07/18/2016 by Guido Vranken with Oracle as HT206903 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-2176 since 01/29/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple issues existed in OpenSSL. These issues were resolved by backporting the fixes from OpenSSL 1.0.2h/1.0.1 to OpenSSL 0.9.8.

The vulnerability scanner Nessus provides a plugin with the ID 92323 (AIX OpenSSL Advisory : openssl_advisory20.asc), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124883 (Oracle Solaris 10 Multiple Vulnerabilities (Third Party Bulletin - April 2016)).

Upgrading to version 10.11.6 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 (92323) and SecurityFocus (BID 91787†). Entries connected to this vulnerability are available at VDB-76354, VDB-76874, VDB-78584 and VDB-78603. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 92323
Nessus Name: AIX OpenSSL Advisory : openssl_advisory20.asc
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities December-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.11.6
Patch: 2919516136a4227d9e6d8f2fe66ef976aaf8c561

Timelineinfo

01/29/2016 🔍
05/04/2016 +96 days 🔍
07/15/2016 +72 days 🔍
07/15/2016 +0 days 🔍
07/18/2016 +3 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
09/06/2022 +2240 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206903
Researcher: Guido Vranken
Organization: Oracle
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2176 (🔍)
GCVE (CVE): GCVE-0-2016-2176
GCVE (VulDB): GCVE-100-89776

OVAL: 🔍

SecurityFocus: 91787 - Oracle July 2016 Critical Patch Update Multiple Vulnerabilities
SecurityTracker: 1035721

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

Entryinfo

Created: 07/19/2016 19:25
Updated: 09/06/2022 10:08
Changes: 07/19/2016 19:25 (59), 03/03/2019 12:03 (25), 09/06/2022 10:08 (6)
Complete: 🔍
Cache ID: 216::103

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