CVE-2020-27931: Input Validation

Published Sep 16, 2020
·
Updated

FontParser. A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation.

Other sources

A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation. This issue is fixed in iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0. Processing a maliciously crafted font file may lead to arbitrary code execution.

Credit

Apple, Apple, Apple, Apple, Apple, Mateusz Jurczyk(Google Project Zero), Mateusz Jurczyk(Google Project Zero), Mateusz Jurczyk(Google Project Zero)

Affected Software

14 affected componentsFixes available
Apple macOS Big Sur<11.0.1
11.0.1
Apple tvOS<14.0
14.0
Apple macOS Big Sur<11.1
11.1
Apple Catalina
Apple Mojave
Apple WatchOS<7.0
7.0
Apple iOS<14.0
14.0
Apple iPadOS<14.0
14.0
Apple iOS and macOS<11.1.0
Apple iPadOS<14.0
Apple iPhone OS<14.0
Apple iOS and macOS<11.0.1
Apple tvOS<14.0
Apple WatchOS<7.0

Event History

Apr 2, 2021
CVE Published
via MITRE·05:32 PM
Data Sourced
via MITRE·05:32 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2020-27931?

CVE-2020-27931 is a memory corruption issue in the FontParser component of Apple's software.

2

Which software versions are affected by CVE-2020-27931?

CVE-2020-27931 affects Apple tvOS 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 macOS Big Sur up to version 11.0.1, Apple macOS Big Sur up to version 11.1, Apple Catalina, and Apple Mojave.

3

How can I fix the vulnerability in CVE-2020-27931?

To fix the vulnerability in CVE-2020-27931, you should update your affected Apple software to the latest version available.

4

Where can I find more information about CVE-2020-27931?

You can find more information about CVE-2020-27931 on the Apple support website.

5

What is the Common Weakness Enumeration (CWE) ID for CVE-2020-27931?

The CWE ID for CVE-2020-27931 is CWE-20, which stands for Improper Input Validation.

Company

Resources

Contact

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