high
7.8
CWE
20 787
Advisory Published
CVE Published
Updated

CVE-2021-1747: Input Validation

First published: Tue Jan 26 2021(Updated: )

An out-of-bounds write 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 maliciously crafted web content may lead to code execution.

Credit: JunDong Xie Ant Security LightJunDong Xie Ant Security LightJunDong Xie Ant Security LightJunDong Xie Ant Security Light product-security@apple.com

Affected SoftwareAffected VersionHow to fix
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
Apple watchOS<7.3
7.3
Apple tvOS<14.4
14.4
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave

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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-2021-1747?

    CVE-2021-1747 is a vulnerability in CoreAudio that allows an attacker to carry out an out-of-bounds write due to a lack of proper input validation.

  • What is the severity of CVE-2021-1747?

    The severity of CVE-2021-1747 is not specified in the provided information.

  • Which software versions are affected by CVE-2021-1747?

    CVE-2021-1747 affects 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.

  • How can I fix CVE-2021-1747?

    To fix CVE-2021-1747, it is recommended to update the affected software to the latest version provided by Apple.

  • Where can I find more information about CVE-2021-1747?

    More information about CVE-2021-1747 can be found on the Apple support website at the following links: [link1](https://support.apple.com/en-us/HT212149), [link2](https://support.apple.com/en-us/HT212147), [link3](https://support.apple.com/en-us/HT212148).

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