Apple tvOS up to 10.2.0 CoreText input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Apple tvOS up to 10.2.0. This affects an unknown function of the component CoreText. The manipulation results in input validation. This vulnerability is identified as CVE-2017-7003. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Apple tvOS up to 10.2.0 (Digital Media Player). Affected is an unknown code block of the component CoreText. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the "CoreText" component. It allows remote attackers to cause a denial of service (application crash) via a crafted file.

The bug was discovered 06/07/2017. The weakness was released 04/03/2018 by lokihardt with Google Project Zero (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2017-7003 since 03/17/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 100256 (Apple TV < 10.2.1 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.

Upgrading to version 10.2.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100256) and SecurityFocus (BID 98454†). Entries connected to this vulnerability are available at VDB-101294, VDB-101254, VDB-101255 and VDB-101256. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 100256
Nessus Name: Apple TV < 10.2.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tvOS 10.2.1

Timelineinfo

03/17/2017 🔍
05/15/2017 +59 days 🔍
05/15/2017 +0 days 🔍
05/17/2017 +2 days 🔍
06/07/2017 +21 days 🔍
04/03/2018 +300 days 🔍
04/03/2018 +0 days 🔍
04/03/2018 +0 days 🔍
02/08/2021 +1042 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Researcher: lokihardt (lokihardt)
Organization: Google Project Zero
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7003 (🔍)
GCVE (CVE): GCVE-0-2017-7003
GCVE (VulDB): GCVE-100-115596
SecurityFocus: 98454 - WebKit CVE-2017-6984 Unspecified Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 04/03/2018 14:32
Updated: 02/08/2021 10:25
Changes: 04/03/2018 14:32 (68), 01/20/2020 15:21 (7), 02/08/2021 10:25 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!