critical
9.3
CWE
787
Advisory Published
Updated

CVE-2021-30971

First published: Tue Aug 24 2021(Updated: )

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2, macOS Big Sur 11.6.2, Security Update 2021-008 Catalina. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution.

Credit: Ye Zhang @co0py_Cat Baidu SecurityYe Zhang @co0py_Cat Baidu SecurityYe Zhang @co0py_Cat Baidu SecurityYe Zhang @co0py_Cat Baidu Security cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.6.2
11.6.2
Apple iOS<15.2
15.2
Apple iPadOS<15.2
15.2
Apple macOS Monterey<12.1
12.1
Apple Catalina
Apple iPadOS<15.2
Apple iPhone OS<15.2
Apple Mac OS X>=10.15<=10.15.7
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2021-001
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-security_update_2021-003
Apple Mac OS X=10.15.7-security_update_2021-004
Apple Mac OS X=10.15.7-security_update_2021-005
Apple Mac OS X=10.15.7-security_update_2021-006
Apple Mac OS X=10.15.7-security_update_2021-007
Apple macOS>=11.0<11.6.2
Apple macOS>=12.0<12.1

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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-2021-30971?

    CVE-2021-30971 is a vulnerability in Model I/O that allows for an out-of-bounds write issue, which has been addressed with improved bounds checking.

  • What software is affected by CVE-2021-30971?

    CVE-2021-30971 affects Apple iOS versions up to and excluding 15.2, Apple iPadOS versions up to and excluding 15.2, Apple macOS Monterey up to and excluding 12.1, Apple macOS Big Sur up to and excluding 11.6.2, and Apple Catalina.

  • How can I fix CVE-2021-30971?

    To fix CVE-2021-30971, make sure to update your software to the latest version. For Apple iOS, update to version 15.2 or later. For Apple iPadOS, update to version 15.2 or later. For Apple macOS Monterey, update to version 12.1 or later. For Apple macOS Big Sur, update to version 11.6.2 or later.

  • Where can I find more information about CVE-2021-30971?

    You can find more information about CVE-2021-30971 on the Apple support website at the following links: [Link1](https://support.apple.com/en-us/HT212978), [Link2](https://support.apple.com/en-us/HT212979), [Link3](https://support.apple.com/en-us/HT212976).

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