CVE-2021-1843: High severity apple macos vulnerability

Published Apr 26, 2021
·
Updated

ImageIO. This issue was addressed with improved checks.

Other sources

This issue was addressed with improved checks. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted image may lead to arbitrary code execution.

Credit

Ye Zhang(Baidu Security), Xingwei Lin(Ant Security Light), Mickey Jin & Qi Sun(Trend Micro), (Ant Security Light)

Affected Software

53 affected componentsFixes available
Apple macOS Big Sur<11.3
11.3
Apple tvOS<14.5
14.5
Apple Catalina
Apple Mojave
Apple WatchOS<7.4
7.4
Apple iOS<14.5
14.5
Apple iPadOS<14.5
14.5
Apple iPadOS<14.5
Apple iPhone OS<14.5
Apple iOS and macOS=10.14
Apple iOS and macOS=10.14.0
Apple iOS and macOS=10.14.1
Apple iOS and macOS=10.14.2
Apple iOS and macOS=10.14.3
Apple iOS and macOS=10.14.4
Apple iOS and macOS=10.14.4-beta4
Apple iOS and macOS=10.14.5
Apple iOS and macOS=10.14.6
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_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
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-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.15
Apple iOS and macOS=10.15.1
Apple iOS and macOS=10.15.2
Apple iOS and macOS=10.15.3
Apple iOS and macOS=10.15.4
Apple iOS and macOS=10.15.5
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6
Apple iOS and macOS=10.15.6-supplemental_update
Apple iOS and macOS=10.15.7
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 macOS>=11.0<11.3
Apple tvOS<14.5
Apple WatchOS<7.4

Event History

Sep 8, 2021
CVE Published
via MITRE·02:43 PM
Data Sourced
via MITRE·02:43 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-1843?

CVE-2021-1843 is a vulnerability in ImageIO in Apple iOS, iPadOS, watchOS, macOS Big Sur, tvOS, Catalina, and Mojave.

2

What is the severity of CVE-2021-1843?

The severity of CVE-2021-1843 is not specified in the provided information.

3

How does CVE-2021-1843 affect Apple devices?

CVE-2021-1843 affects Apple devices running iOS, iPadOS, watchOS, macOS Big Sur, tvOS, Catalina, and Mojave.

4

Is there a fix available for CVE-2021-1843?

Yes, Apple has addressed CVE-2021-1843 with improved checks. It is recommended to update your affected Apple devices to the specified versions provided by Apple.

5

Where can I find more information about CVE-2021-1843?

You can find more information about CVE-2021-1843 on Apple's support page: [link](https://support.apple.com/en-us/HT212326)

Contact

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