Apple tvOS up to 10.0 FontParser information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 10.0 and classified as problematic. Impacted is an unknown function of the component FontParser. Executing a manipulation can lead to information disclosure. This vulnerability is handled as CVE-2016-4660. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 10.0 (Digital Media Player). It has been declared as critical. This vulnerability affects an unknown code of the component FontParser. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, and availability.

The weakness was released 10/24/2016 by Ke Liu with Google Project Zero as HT207270 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2016-4660 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 MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

An out-of-bounds read was addressed through improved bounds checking.

The vulnerability scanner Nessus provides a plugin with the ID 94337 (Apple TV < 10.0.1 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 370175 (Apple Mac OS X Security Update Sierra 10.12.1, El Capitan 2016-002 and Yosemite 2016-006 Not Installed (APPLE-SA-2016-10-24-2)).

Upgrading to version 10.0.1 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 (94337) and SecurityFocus (BID 93849†). Entries connected to this vulnerability are available at VDB-93042, VDB-93046, VDB-93047 and VDB-93052. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 94337
Nessus Name: Apple TV < 10.0.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-03 February-2017
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: tvOS 10.0.1

Timelineinfo

05/11/2016 🔍
10/24/2016 +166 days 🔍
10/24/2016 +0 days 🔍
10/24/2016 +0 days 🔍
10/25/2016 +1 days 🔍
10/27/2016 +2 days 🔍
02/20/2017 +116 days 🔍
09/28/2022 +2046 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207270
Researcher: Ke Liu
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4660 (🔍)
GCVE (CVE): GCVE-0-2016-4660
GCVE (VulDB): GCVE-100-93076
SecurityFocus: 93849 - Apple macOS/watchOS/iOS/tvOS Multiple Security Vulnerabilities
SecurityTracker: 1037086

See also: 🔍

Entryinfo

Created: 10/25/2016 11:26
Updated: 09/28/2022 12:57
Changes: 10/25/2016 11:26 (60), 05/17/2019 20:41 (24), 09/28/2022 12:57 (4)
Complete: 🔍
Cache ID: 216::103

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