high
7.8
CWE
20
Advisory Published
Updated

CVE-2021-30881: Input Validation

First published: Tue Aug 24 2021(Updated: )

An input validation issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, tvOS 15.1, watchOS 8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Unpacking a maliciously crafted archive may lead to arbitrary code execution.

Credit: Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360Simon Huang @HuangShaomang pjf IceSword Lab of Qihoo 360 cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple iOS<15.1
15.1
Apple iPadOS<15.1
15.1
Apple macOS Monterey<12.0.1
12.0.1
Apple Catalina
Apple macOS Big Sur<11.6.1
11.6.1
Apple watchOS<8.1
8.1
Apple tvOS<15.1
15.1
Apple iPadOS<15.1
Apple iPhone OS<15.1
Apple Mac OS X<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-supplemental_update
Apple macOS>=11.0<11.6.1
Apple macOS=12.0
Apple tvOS<15.1
Apple watchOS<8.1

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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-2021-30881?

    CVE-2021-30881 is a vulnerability in FileProvider that involves an input validation issue with improved memory handling.

  • Who is affected by CVE-2021-30881?

    CVE-2021-30881 affects users of Apple products running specific versions of macOS, iOS, iPadOS, watchOS, and tvOS.

  • How can I protect myself from CVE-2021-30881?

    To protect yourself from CVE-2021-30881, make sure to update your Apple devices to the recommended versions mentioned in the vulnerability description.

  • Where can I find more information about CVE-2021-30881?

    More information about CVE-2021-30881 can be found on the official Apple support page listed in the references section.

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2021-30881?

    The CWE ID for CVE-2021-30881 is CWE-20, which corresponds to input validation issues.

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