CVE-2020-9956: Input Validation

Published Sep 16, 2020
·
Updated

FontParser. An out-of-bounds read was addressed with improved input validation.

Other sources

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

Credit

Mickey Jin, Junzhi Lu(Trend Micro Mobile Security Research Team working with Trend Micro), Mickey Jin, Junzhi Lu(Trend Micro Mobile Security Research Team working with Trend Micro), Mickey Jin, Junzhi Lu(Trend Micro Mobile Security Research Team working with Trend Micro), Mickey Jin, Junzhi Lu(Trend Micro Mobile Security Research Team working with Trend Micro), Mickey Jin, Junzhi Lu(Trend Micro Mobile Security Research Team working with Trend Micro)

Affected Software

28 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 iPadOS<14.0.
Apple iPhone OS<14.0
Apple iOS and macOS>=10.14<10.14.6
Apple iOS and macOS>=10.15<10.15.7
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.1.0
Apple tvOS<14.0
Apple WatchOS<7.0

Event History

Apr 2, 2021
CVE Published
via MITRE·05:23 PM
Data Sourced
via MITRE·05:23 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-2020-9956?

CVE-2020-9956 is a vulnerability in FontParser that allows for an out-of-bounds read.

2

How does CVE-2020-9956 affect Apple devices?

CVE-2020-9956 affects Apple devices running tvOS up to version 14.0, iOS up to version 14.0, iPadOS up to version 14.0, watchOS up to version 7.0, macOS Big Sur up to version 11.0.1, macOS Big Sur up to version 11.1, Catalina, and Mojave.

3

What is the severity of CVE-2020-9956?

The severity of CVE-2020-9956 is not mentioned in the provided information.

4

How can I fix CVE-2020-9956?

To fix CVE-2020-9956, update your Apple device to the latest available version of the affected software.

5

Where can I find more information about CVE-2020-9956?

You can find more information about CVE-2020-9956 at the following references: [Reference 1](https://support.apple.com/en-us/HT211843), [Reference 2](https://support.apple.com/en-us/HT212011), and [Reference 3](https://support.apple.com/en-us/HT211844).

Company

Resources

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