Apple tvOS up to 11.2 CoreText input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple tvOS up to 11.2 and classified as problematic. The affected element is an unknown function of the component CoreText. This manipulation causes input validation. This vulnerability appears as CVE-2018-4142. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Apple tvOS up to 11.2 (Digital Media Player). Affected by this vulnerability is an unknown part of the component CoreText. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability.

The bug was discovered 03/29/2018. The weakness was presented 03/29/2018 by Robin Leroy with Google as HT208698 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2018-4142 since 01/02/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A denial of service issue was addressed through improved memory handling.

The vulnerability scanner Nessus provides a plugin with the ID 108786 (macOS 10.13.x < 10.13.4 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370851 (Apple macOS High Sierra 10.13.4, Security Update 2018-002 Sierra, and Security Update 2018-002 El Capitan Not Installed).

Upgrading to version 11.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (108786). See VDB-115299, VDB-115297, VDB-115298 and VDB-115300 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 108786
Nessus Name: macOS 10.13.x < 10.13.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902798
OpenVAS Name: Apple MacOSX Security Updates(HT208692)-01
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 11.3

Timelineinfo

01/02/2018 🔍
03/29/2018 +86 days 🔍
03/29/2018 +0 days 🔍
03/29/2018 +0 days 🔍
03/31/2018 +2 days 🔍
04/02/2018 +2 days 🔍
04/03/2018 +0 days 🔍
02/26/2023 +1790 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208698
Researcher: Robin Leroy
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-4142 (🔍)
GCVE (CVE): GCVE-0-2018-4142
GCVE (VulDB): GCVE-100-115363
SecurityFocus: 101274
SecurityTracker: 1040604

See also: 🔍

Entryinfo

Created: 03/31/2018 19:44
Updated: 02/26/2023 07:26
Changes: 03/31/2018 19:44 (77), 01/19/2020 08:52 (3), 02/07/2021 09:29 (4), 02/26/2023 07:26 (3)
Complete: 🔍
Cache ID: 216::103

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