CVE-2018-4142: Input Validation

Published Mar 29, 2018
·
Updated

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves the "CoreText" component. It allows remote attackers to cause a denial of service (application crash) via a crafted string.

Other sources

CoreText. A denial of service issue was addressed with improved memory handling.

Credit

Robin Leroy(Google Switzerland GmbH)

Affected Software

10 affected componentsFixes available
Apple tvOS<11.3
11.3
Apple macOS High Sierra<10.13.4
10.13.4
Apple Sierra
Apple El Capitan
Apple WatchOS<4.3
4.3
Apple iOS<11.3
11.3
Apple iPhone OS<11.3
Apple iOS and macOS<10.13.4
Apple tvOS<11.3
Apple WatchOS<4.3

Event History

Apr 3, 2018
CVE Published
via MITRE·06:00 AM
Data Sourced
via MITRE·06:00 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2018-4142?

CVE-2018-4142 is a denial of service vulnerability in CoreText component of certain Apple products.

2

Which Apple products are affected by CVE-2018-4142?

iOS before 11.3, macOS before 10.13.4, tvOS before 11.3, and watchOS before 4.3 are affected by CVE-2018-4142.

3

How does CVE-2018-4142 impact the affected products?

CVE-2018-4142 allows remote attackers to cause a denial of service by crashing the application.

4

What is the severity level of CVE-2018-4142?

CVE-2018-4142 has a severity rating of high (7.5).

5

How can I fix CVE-2018-4142?

To fix CVE-2018-4142, update your Apple product to the latest version available (iOS 11.3 or later, macOS 10.13.4 or later, tvOS 11.3 or later, watchOS 4.3 or later).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203