medium
5.5
CWE
119 120
Advisory Published
Updated

CVE-2021-30940: Buffer Overflow

First published: Tue Aug 24 2021(Updated: )

A buffer overflow issue was addressed with improved memory handling. 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 disclose memory contents.

Credit: Rui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security LightRui Yang Xingwei Lin Ant Security Light cve@mitre.org

Affected SoftwareAffected VersionHow to fix
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
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
Apple iOS<15.2
15.2
Apple iPadOS<15.2
15.2
Apple macOS Monterey<12.1
12.1
Apple Catalina

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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-2021-30940?

    CVE-2021-30940 is a buffer overflow issue in Model I/O that has been fixed with improved memory handling.

  • What software is affected by CVE-2021-30940?

    CVE-2021-30940 affects Apple iOS up to version 15.2, Apple iPadOS up to version 15.2, Apple macOS Monterey up to version 12.1, and Apple macOS Big Sur up to version 11.6.2.

  • How can I fix CVE-2021-30940?

    To fix CVE-2021-30940, update your Apple iOS, iPadOS, macOS Monterey, or macOS Big Sur to the latest available version.

  • What is the severity of CVE-2021-30940?

    The severity of CVE-2021-30940 is not specified.

  • Where can I find more information about CVE-2021-30940?

    You can find more information about CVE-2021-30940 on the Apple support page.

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