high
7.8
CWE
20 787
Advisory Published
CVE Published
Updated

CVE-2020-27944: 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 watchOS 7.2, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. Processing a maliciously crafted font file may lead to arbitrary code execution.

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

Affected SoftwareAffected VersionHow to fix
tvOS<14.3
14.3
Apple macOS<11.1
11.1
macOS Catalina
macOS Mojave
Apple iOS, iPadOS, and watchOS<14.3
14.3
Apple iOS, iPadOS, and watchOS<14.3
14.3
Apple iOS, iPadOS, and watchOS<7.2
7.2
iPadOS<14.3
iStyle @cosme iPhone OS<14.3
Apple iOS and macOS<11.1.0
tvOS<14.3
Apple iOS, iPadOS, and 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 CVE-2020-27944?

    CVE-2020-27944 is a memory corruption issue in the processing of font files in Apple iOS, iPadOS, tvOS, macOS Big Sur, Catalina, Mojave, and watchOS.

  • How severe is CVE-2020-27944?

    CVE-2020-27944 has a severity rating of high.

  • Which products and versions are affected by CVE-2020-27944?

    CVE-2020-27944 affects Apple iOS up to version 14.3, iPadOS up to version 14.3, tvOS up to version 14.3, macOS Big Sur up to version 11.1, Catalina, Mojave, and watchOS up to version 7.2.

  • How can I fix CVE-2020-27944?

    To fix CVE-2020-27944, update your Apple device to the latest available version of iOS, iPadOS, tvOS, macOS Big Sur, Catalina, Mojave, or watchOS, depending on the affected product.

  • Where can I find more information about CVE-2020-27944?

    You can find more information about CVE-2020-27944 on the Apple support page: [CVE-2020-27944](https://support.apple.com/en-us/HT212009).

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