high
8.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2020-9947: Use After Free

First published: Wed Sep 16 2020(Updated: )

A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0, Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.

Credit: cc Trend Micro Zero Day Initiativecc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Taloscc Trend Micro Zero Day Initiativecc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Taloscc Trend Micro Zero Day Initiativecc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Taloscc Trend Micro Zero Day Initiativecc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Taloscc Trend Micro Zero Day Initiativecc Trend Micro Zero Day Initiativean anonymous researcher cc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Taloscc Trend Micro Zero Day InitiativeMarcin 'Icewall' Noga Cisco Talos product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple Safari<14.0
14.0
Apple iCloud for Windows<11.5
11.5
Apple iTunes for Windows<12.10.9
12.10.9
Apple macOS Big Sur<11.0.1
11.0.1
Apple watchOS<7.0
7.0
Apple tvOS<14.0
14.0
Apple iOS<14.0
14.0
Apple iPadOS<14.0
14.0
Apple Icloud Windows<11.5.0
Apple Itunes Windows>=12.0.0<12.10.9
Apple Safari<14.0
Apple iPadOS<14.0
Apple iPhone OS<14.0
Apple tvOS<14.0
Apple watchOS<7.0

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-9947?

    CVE-2020-9947 is a vulnerability in WebKit that allows arbitrary code execution through a use after free issue.

  • Which software versions are affected by CVE-2020-9947?

    CVE-2020-9947 affects Apple tvOS up to version 14.0, Apple macOS Big Sur up to version 11.0.1, Apple Safari up to version 14.0, Apple iOS up to version 14.0, Apple iPadOS up to version 14.0, Apple watchOS up to version 7.0, Apple iTunes for Windows up to version 12.10.9, and Apple iCloud for Windows up to version 11.5.

  • How can I fix CVE-2020-9947?

    To fix CVE-2020-9947, you should update your software to the latest version provided by Apple.

  • What is the severity of CVE-2020-9947?

    The severity of CVE-2020-9947 is not specified in the vulnerability report, but it allows arbitrary code execution.

  • Where can I find more information about CVE-2020-9947?

    You can find more information about CVE-2020-9947 on the Apple Support website using the following links: [link1], [link2], [link3].

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