Apple Mac OS X up to 10.11.4 libc memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple Mac OS X up to 10.11.4. Affected by this vulnerability is an unknown functionality of the component libc. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2016-1832. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.11.4 (Operating System). This vulnerability affects an unknown function of the component libc. 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. CVE summarizes:

libc in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1 allows local users to gain privileges or cause a denial of service (memory corruption) via unspecified vectors.

The weakness was disclosed 05/16/2016 by Karl Williamson (Basti) with Nanyang Technological University as HT206567 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-1832 since 01/13/2016. The attack needs to be approached locally. The successful exploitation requires a single authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A memory corruption issue was addressed through improved input validation.

The vulnerability scanner Nessus provides a plugin with the ID 91311 (Apple TV < 9.2.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122912 (Apple Mac OS X v10.11.5 and Security Update 2016-003 Not Installed (APPLE-SA-2016-05-16-4)).

Upgrading to version 10.11.5 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 (91311) and SecurityFocus (BID 90691†). The entries VDB-87425, VDB-87434, VDB-87435 and VDB-87436 are pretty similar. 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: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91311
Nessus Name: Apple TV < 9.2.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-01 November-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mac OS X 10.11.5

Timelineinfo

01/13/2016 🔍
05/16/2016 +124 days 🔍
05/16/2016 +0 days 🔍
05/16/2016 +0 days 🔍
05/18/2016 +2 days 🔍
05/20/2016 +2 days 🔍
05/24/2016 +4 days 🔍
11/06/2024 +3088 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206567
Researcher: Karl Williamson (Basti)
Organization: Nanyang Technological University
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-1832 (🔍)
GCVE (CVE): GCVE-0-2016-1832
GCVE (VulDB): GCVE-100-87472
SecurityFocus: 90691 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities
SecurityTracker: 1035890

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

Entryinfo

Created: 05/18/2016 11:53
Updated: 11/06/2024 21:52
Changes: 05/18/2016 11:53 (57), 12/01/2018 23:44 (26), 08/21/2022 06:43 (3), 11/06/2024 21:52 (16)
Complete: 🔍
Cache ID: 216:550:103

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

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