CVE-2021-1736: Input Validation

Published Feb 1, 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. 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)

Affected Software

23 affected componentsFixes available
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave
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_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-security_update_2020-001
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.2

Event History

Apr 2, 2021
CVE Published
via MITRE·05:46 PM
Data Sourced
via MITRE·05:46 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-2021-1736?

CVE-2021-1736 is a vulnerability in the ImageIO library that allows for an out-of-bounds read, which has been addressed with improved input validation.

2

Which software versions are affected by CVE-2021-1736?

CVE-2021-1736 affects macOS Big Sur versions 11.2 up to, but not including, 11.2.

3

How can I fix CVE-2021-1736?

To fix CVE-2021-1736, update your macOS Big Sur to version 11.2 or later.

4

Is Apple Catalina affected by CVE-2021-1736?

Yes, Apple Catalina is affected by CVE-2021-1736.

5

Where can I find more information about CVE-2021-1736?

You can find more information about CVE-2021-1736 on the Apple support website.

Company

Resources

Contact

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