CWE
20
Advisory Published
CVE Published
Updated

CVE-2018-4321: Input Validation

First published: Mon Sep 17 2018(Updated: )

Auto Unlock. A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement.

Credit: Min (Spark) Zheng Xiaolong Bai Alibaba IncMin (Spark) Zheng Alibaba IncXiaolong Bai Alibaba IncMin (Spark) Zheng Xiaolong Bai Alibaba Inc product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPhone OS<12.0
Apple Mac OS X<10.14
Apple tvOS<12
Apple macOS Mojave<10.14
10.14
Apple iOS<12
12
Apple tvOS<12
12

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-4321?

    CVE-2018-4321 is a vulnerability that existed in the entitlement verification in Apple devices running iOS 12, macOS Mojave 10.14, and tvOS 12 or prior versions.

  • What is the severity of CVE-2018-4321?

    CVE-2018-4321 has a severity rating of 5.3, which is considered medium.

  • How does CVE-2018-4321 affect Apple devices?

    CVE-2018-4321 affects Apple devices running iOS 12, macOS Mojave 10.14, and tvOS 12 or prior versions.

  • How can I fix CVE-2018-4321?

    To fix CVE-2018-4321, update your Apple device to iOS 12, macOS Mojave 10.14, or tvOS 12 or later versions.

  • Where can I find more information about CVE-2018-4321?

    You can find more information about CVE-2018-4321 on the Apple support website at the following links: [support.apple.com/kb/HT209106](support.apple.com/kb/HT209106), [support.apple.com/kb/HT209107](support.apple.com/kb/HT209107), [support.apple.com/kb/HT209139](support.apple.com/kb/HT209139).

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