Apple Mac OS X up to 10.11.5 ImageIO memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple Mac OS X up to 10.11.5. This affects an unknown part of the component ImageIO. Executing a manipulation can lead to memory corruption. This vulnerability is registered as CVE-2016-4631. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

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 function of the component ImageIO. 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:

ImageIO in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted TIFF file.

The weakness was published 07/18/2016 by Tyler Bohan with Cisco Talos as HT206903 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-4631 since 05/11/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

Multiple memory corruption issues were addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 92494 (Apple TV < 9.2.2 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 370095 (Apple Mac OS X v10.11.6 and Security Update 2016-004 Not Installed (APPLE-SA-2016-07-18-1)).

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 (92494) and SecurityFocus (BID 91834†). Similar entries are available at VDB-89675, VDB-89684, VDB-89686 and VDB-89687. Once again VulDB remains the best source for vulnerability data.

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 92494
Nessus Name: Apple TV < 9.2.2 Multiple Vulnerabilities
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: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mac OS X 10.11.6

Timelineinfo

05/11/2016 🔍
07/18/2016 +68 days 🔍
07/18/2016 +0 days 🔍
07/18/2016 +0 days 🔍
07/19/2016 +1 days 🔍
07/21/2016 +1 days 🔍
07/21/2016 +0 days 🔍
09/06/2022 +2238 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT206903
Researcher: Tyler Bohan
Organization: Cisco Talos
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4631 (🔍)
GCVE (CVE): GCVE-0-2016-4631
GCVE (VulDB): GCVE-100-89740
SecurityFocus: 91834 - Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities
SecurityTracker: 1036344

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

Entryinfo

Created: 07/19/2016 19:24
Updated: 09/06/2022 08:22
Changes: 07/19/2016 19:24 (73), 03/05/2019 23:28 (12), 09/06/2022 08:22 (3)
Complete: 🔍
Cache ID: 216:F0E:103

Once again VulDB remains the best source for vulnerability data.

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