CVE-2021-30843: High severity apple macos vulnerability

Published Sep 13, 2021
·
Updated

FontParser. This issue was addressed with improved checks.

Other sources

This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

Credit

Xingwei Lin(Ant Security Light)

Affected Software

24 affected componentsFixes available
Apple macOS Big Sur<11.6
11.6
Apple tvOS<15
15
Apple Catalina
Apple WatchOS<8
8
Apple iOS<15
15
Apple iPadOS<15
15
Apple iOS<14.8
14.8
Apple iPadOS<14.8
14.8
Apple iPadOS<14.8
Apple iPhone OS<14.8
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-security_update_2021-004
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.6
Apple tvOS<15.0
Apple WatchOS<8.0

Event History

Oct 19, 2021
CVE Published
via MITRE·01:11 PM
Data Sourced
via MITRE·01:11 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 the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2021-30843.

2

Which software versions are affected by CVE-2021-30843?

WatchOS up to version 8, iOS up to version 15, iPadOS up to version 15, macOS Big Sur up to version 11.6, Catalina, and tvOS up to version 15.

3

How was the vulnerability addressed?

The vulnerability was addressed with improved checks in the FontParser.

4

Where can I find more information about the vulnerability?

You can find more information about the vulnerability on the Apple support website.

Company

Resources

Contact

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