CVE-2021-1785: Input Validation

Published Jan 26, 2021
·
Updated

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Other sources

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

Credit

Xingwei Lin(Ant Security Light), Xingwei Lin(Ant Security Light), Xingwei Lin(Ant Security Light), Xingwei Lin(Ant Security Light), Xingwei Lin(Ant Security Light)

Affected Software

30 affected componentsFixes available
Apple tvOS<14.4
14.4
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave
Apple WatchOS<7.3
7.3
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple iPadOS<14.4
Apple iPhone OS<14.4
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_2019-004
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-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<11.2
Apple tvOS<14.4
Apple WatchOS<7.3

Event History

Apr 2, 2021
CVE Published
via MITRE·06:00 PM
Data Sourced
via MITRE·06:00 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-1785?

CVE-2021-1785 is a vulnerability in ImageIO that allows an out-of-bounds read due to improved input validation.

2

Which software versions are affected by CVE-2021-1785?

macOS Big Sur 11.2, Apple Catalina, Apple Mojave, Apple watchOS up to 7.3, Apple iOS up to 14.4, Apple iPadOS up to 14.4, and Apple tvOS up to 14.4 are affected by CVE-2021-1785.

3

How does CVE-2021-1785 affect ImageIO?

CVE-2021-1785 allows an out-of-bounds read in ImageIO, which could potentially lead to information disclosure or crash the application.

4

How can I fix the CVE-2021-1785 vulnerability?

Update your software to the latest version provided by Apple, which includes the fix for CVE-2021-1785.

5

Where can I find more information about CVE-2021-1785?

You can find more information about CVE-2021-1785 on the Apple support website: <br>- macOS Big Sur: <a href='https://support.apple.com/en-us/HT212149'>https://support.apple.com/en-us/HT212149</a> <br>- Apple watchOS: <a href='https://support.apple.com/en-us/HT212147'>https://support.apple.com/en-us/HT212147</a> <br>- Apple iOS: <a href='https://support.apple.com/en-us/HT212148'>https://support.apple.com/en-us/HT212148</a>

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