CVE-2018-4347: Use After Free

Published Sep 12, 2018
·
Updated

A use after free issue was addressed with improved memory management. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5, iTunes 12.9 for Windows, iCloud for Windows 7.7.

Other sources

CoreText. A use after free issue was addressed with improved memory management.

Credit

Vasyl Tkachuk(Readdle), Vasyl Tkachuk(Readdle), an anonymous researcher, Vasyl Tkachuk(Readdle), Vasyl Tkachuk(Readdle), Vasyl Tkachuk(Readdle)

Affected Software

13 affected componentsFixes available
Apple tvOS<12
12
Apple macOS Mojave<10.14
10.14
Apple WatchOS<5
5
Apple iCloud for Windows<7.7
7.7
Apple iTunes for Windows<12.9
12.9
Apple iOS<12
12
Apple iPhone OS<12.0
Apple iOS and macOS<10.14
Apple tvOS<12
Apple WatchOS<5.0
Apple iCloud<7.7
Apple iTunes<12.9
Microsoft Windows

Event History

Apr 3, 2019
CVE Published
via MITRE·05:43 PM
Data Sourced
via MITRE·05:43 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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-2018-4347?

CVE-2018-4347 is a vulnerability in Apple devices that allows for a use after free issue due to improved memory management.

2

Which Apple devices are affected by CVE-2018-4347?

Devices running iOS versions prior to 12, macOS Mojave versions prior to 10.14, tvOS versions prior to 12, watchOS versions prior to 5, iTunes for Windows versions prior to 12.9, and iCloud for Windows versions prior to 7.7 are affected by CVE-2018-4347.

3

What is the severity of CVE-2018-4347?

CVE-2018-4347 has a severity rating of 7.8, which is considered high.

4

How can I fix CVE-2018-4347?

To fix CVE-2018-4347, update your Apple devices to the latest versions of iOS, macOS Mojave, tvOS, watchOS, iTunes for Windows, and iCloud for Windows. Refer to Apple's support page for more information.

5

What is the Common Weakness Enumeration (CWE) ID for CVE-2018-4347?

The CWE ID for CVE-2018-4347 is 416.

Company

Resources

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