high
7.8
CWE
20 125
Advisory Published
CVE Published
Updated

CVE-2021-1785: Input Validation

First published: Tue 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.

Credit: Xingwei Lin Ant Security LightXingwei Lin Ant Security LightXingwei Lin Ant Security LightXingwei Lin Ant Security LightXingwei Lin Ant Security Light product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple watchOS<7.3
7.3
Apple tvOS<14.4
14.4
Apple iPadOS<14.4
Apple iPhone OS<14.4
Apple Mac OS X>=10.14<10.14.6
Apple Mac OS X>=10.15<10.15.7
Apple Mac OS X=10.14.6
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2020-004
Apple Mac OS X=10.14.6-security_update_2020-005
Apple Mac OS X=10.14.6-security_update_2020-006
Apple Mac OS X=10.14.6-security_update_2020-007
Apple Mac OS X=10.14.6-supplemental_update
Apple Mac OS X=10.14.6-supplemental_update_2
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS>=11.0<11.2
Apple tvOS<14.4
Apple watchOS<7.3

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • 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.

  • 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.

  • 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.

  • 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.

  • 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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