CVE-2018-4113: An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affect...

Description

An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves a JavaScriptCore function in the "WebKit" component. It allows attackers to trigger an assertion failure by leveraging improper array indexing.

Metrics

EPSS Probability

2.18%

80.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Apple	Safari	< 11.1
Apple	Iphone Os	< 11.3
Apple	Tvos	< 11.3
Apple	Watchos	< 4.3
Apple	Icloud	< 7.4
Apple	Itunes	< 12.7.4
Webkitgtk	Webkitgtk\+	< 2.20.4
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10

References

http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201808-04Third Party Advisory
https://support.apple.com/HT208693Vendor Advisory
https://support.apple.com/HT208694Vendor Advisory
https://support.apple.com/HT208695Vendor Advisory
https://support.apple.com/HT208696Vendor Advisory
https://support.apple.com/HT208697Vendor Advisory
https://support.apple.com/HT208698Vendor Advisory
https://usn.ubuntu.com/3635-1/Third Party Advisory
http://www.securitytracker.com/id/1040604Third Party Advisory, VDB Entry
https://security.gentoo.org/glsa/201808-04Third Party Advisory
https://support.apple.com/HT208693Vendor Advisory
https://support.apple.com/HT208694Vendor Advisory
https://support.apple.com/HT208695Vendor Advisory
https://support.apple.com/HT208696Vendor Advisory
https://support.apple.com/HT208697Vendor Advisory
https://support.apple.com/HT208698Vendor Advisory
https://usn.ubuntu.com/3635-1/Third Party Advisory

Timeline

Published: Apr 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4113?

An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves a JavaScriptCore function in the "WebKit" component. It allows attackers to trigger an assertion failure by leveraging improper array indexing.

How severe is CVE-2018-4113?

Severity scoring for CVE-2018-4113 is pending analysis. The EPSS model estimates a 2.18% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4113?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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