Advisory Published
CVE Published
Updated

CVE-2018-4391

First published: Tue Oct 31 2017(Updated: )

LinkPresentation. An inconsistent user interface issue was addressed with improved state management.

Credit: Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter Rayyan Bijoora @Bijoora The City SchoolPAF Chapter product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iOS<12.1
12.1
Apple iPhone OS<12.1
Apple Mac OS X>=10.13<10.13.1
Apple watchOS<4.3

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2018-4391?

    CVE-2018-4391 refers to an inconsistent user interface issue in Messages that has been fixed in several Apple software updates.

  • How can the inconsistent user interface issue in Messages be exploited?

    The issue can be exploited by processing a maliciously crafted text message, which may lead to UI spoofing.

  • Which Apple software versions are affected by CVE-2018-4391?

    CVE-2018-4391 affects macOS High Sierra versions up to 10.13.1, iOS versions up to 11.3 and 12.1, watchOS versions up to 4.3, as well as iPhone OS versions up to 12.1.

  • How can I fix the inconsistent user interface issue in Messages?

    To fix the issue, update to macOS High Sierra 10.13.1, apply Security Update 2017-001 for Sierra, apply Security Update 2017-004 for El Capitan, upgrade to watchOS 4.3, or update iOS to version 12.1.

  • What is the severity of CVE-2018-4391?

    CVE-2018-4391 has a severity rating of 5.5, which is considered medium.

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