8.8
CWE
843
Advisory Published
CVE Published
Updated

CVE-2019-8591

First published: Mon May 13 2019(Updated: )

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. An application may be able to cause unexpected system termination or write kernel memory.

Credit: Ned Williamson Google Project ZeroNed Williamson Google Project ZeroNed Williamson Google Project ZeroNed Williamson Google Project Zero product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPhone OS<12.3
Apple Mac OS X<10.14.5
Apple tvOS<12.3
Apple watchOS<5.2.1
Apple watchOS<5.2.1
5.2.1
Apple iOS<12.3
12.3
Apple tvOS<12.3
12.3
Apple macOS Mojave<10.14.5
10.14.5
Apple High Sierra
Apple Sierra

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2019-8591?

    CVE-2019-8591 is a type confusion vulnerability that was fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, and watchOS 5.2.1.

  • How does CVE-2019-8591 affect Apple devices?

    CVE-2019-8591 can allow an application to cause unexpected system termination or write kernel memory on affected Apple devices.

  • What is the severity of CVE-2019-8591?

    The severity of CVE-2019-8591 is high, with a CVSS score of 7.1.

  • How do I fix CVE-2019-8591?

    To fix CVE-2019-8591, you need to update your Apple devices to the latest versions of iOS, macOS Mojave, tvOS, or watchOS, depending on the affected device.

  • Where can I find more information about CVE-2019-8591?

    You can find more information about CVE-2019-8591 on the Apple support website.

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