medium
5.5
Advisory Published
CVE Published
Updated

CVE-2021-1773

First published: Tue Jan 26 2021(Updated: )

A logic issue was addressed with improved state management. 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 a denial of service.

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

Affected SoftwareAffected VersionHow to fix
tvOS<14.4
14.4
Apple macOS<11.2
11.2
macOS Catalina
macOS Mojave
Apple iOS, iPadOS, and watchOS<14.4
iOS<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 iOS and macOS>=11.0<11.2
tvOS<14.4
Apple iOS, iPadOS, and watchOS<7.3
Apple iOS, iPadOS, and watchOS<14.4
14.4
Apple iOS, iPadOS, and watchOS<14.4
14.4
Apple iOS, iPadOS, and watchOS<7.3
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-2021-1773?

    CVE-2021-1773 is a logic issue in ImageIO that has been addressed with improved state management.

  • Which software versions are affected by CVE-2021-1773?

    CVE-2021-1773 affects macOS Big Sur 11.2, watchOS up to 7.3, iOS up to 14.4, iPadOS up to 14.4, and tvOS up to 14.4.

  • How can I fix CVE-2021-1773?

    To fix CVE-2021-1773, update your software to the latest available version. Refer to the official Apple support page for specific remediation steps.

  • Where can I learn more about CVE-2021-1773?

    You can learn more about CVE-2021-1773 by visiting the official Apple support page at: [https://support.apple.com/en-us/HT212149](https://support.apple.com/en-us/HT212149).

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