CWE
20
Advisory Published
CVE Published
Updated

CVE-2020-9977: Input Validation

First published: Wed Sep 16 2020(Updated: )

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A malicious application may be able to determine a user's open tabs in Safari.

Credit: Josh Parnham @joshparnham Josh Parnham @joshparnham product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPadOS<14.2
Apple iPhone OS<14.2
Apple Mac OS X<11.0.1
Apple iOS<14.0
14.0
Apple iPadOS<14.0
14.0
Apple macOS Big Sur<11.0.1
11.0.1

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2020-9977.

  • What is the affected software for CVE-2020-9977?

    The affected software for CVE-2020-9977 includes Apple iOS 14.0, Apple iPadOS 14.0, and Apple macOS Big Sur 11.0.1.

  • What is the impact of CVE-2020-9977?

    The impact of CVE-2020-9977 is a validation issue in the entitlement verification process, which could potentially be exploited by attackers.

  • How can I fix CVE-2020-9977?

    To fix CVE-2020-9977, update your Apple device to the latest available version of Apple iOS, Apple iPadOS, or Apple macOS Big Sur.

  • Where can I find more information about CVE-2020-9977?

    You can find more information about CVE-2020-9977 on the Apple support website.

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