high
7.8
CWE
20 787
Advisory Published
CVE Published
Updated

CVE-2020-27943: Input Validation

First published: Mon Dec 14 2020(Updated: )

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in tvOS 14.3, iOS 14.3 and iPadOS 14.3, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.2. Processing a maliciously crafted font file may lead to arbitrary code execution.

Credit: Mateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroApple Mateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project ZeroMateusz Jurczyk Google Project Zero product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.1
11.1
Apple Catalina
Apple Mojave
Apple watchOS<7.2
7.2
Apple tvOS<14.3
14.3
Apple iOS<14.3
14.3
Apple iPadOS<14.3
14.3
Apple Ipad Os<14.3
Apple iPhone OS<14.3
Apple macOS<11.1.0
Apple tvOS<14.3
Apple watchOS<7.2

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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 the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2020-27943.

  • What is the affected software?

    The affected software includes Apple iOS, iPadOS, tvOS, macOS Big Sur, Catalina, Mojave, and watchOS.

  • What is the severity of CVE-2020-27943?

    The severity of CVE-2020-27943 is not specified in the information provided.

  • How can I fix CVE-2020-27943?

    To fix CVE-2020-27943, update the affected software to the specified versions.

  • Where can I find more information about CVE-2020-27943?

    You can find more information about CVE-2020-27943 on the Apple support website.

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