high
7.8
CWE
119 120
Advisory Published
Updated
Advisory Published

CVE-2021-30979: Apple macOS ModelIO ABC File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

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 lead to unexpected application termination or arbitrary code execution.

Credit: Mickey Jin @patch1t Trend MicroMickey Jin @patch1t Trend MicroMickey Jin @patch1t Trend MicroMickey Jin @patch1t Trend Micro cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple Catalina
Apple macOS Monterey<12.1
12.1
Apple iOS<15.2
15.2
Apple iPadOS<15.2
15.2
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 macOS
Apple macOS<11.6.2
11.6.2

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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-2021-30979?

    CVE-2021-30979 is a buffer overflow vulnerability in Model I/O that has been addressed with improved memory handling.

  • What software versions are affected by CVE-2021-30979?

    CVE-2021-30979 affects Apple iOS versions up to 15.2, Apple iPadOS versions up to 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-2021-30979?

    To fix CVE-2021-30979, update your software to Apple iOS 15.2, Apple iPadOS 15.2, Apple macOS Monterey 12.1, or Apple macOS Big Sur 11.6.2.

  • What is the severity of CVE-2021-30979?

    The severity of CVE-2021-30979 is not mentioned in the provided information.

  • Where can I find more information about CVE-2021-30979?

    You can find more information about CVE-2021-30979 on the Apple support website (references provided).

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