medium
5.5
CWE
20 125
Advisory Published
Updated

CVE-2021-30973: Input Validation

First published: Tue Aug 24 2021(Updated: )

An out-of-bounds read was addressed with improved input validation. 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 file may disclose user information.

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

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.6.2
11.6.2
macOS Catalina
macOS<12.1
12.1
Apple iOS and iPadOS<15.2
15.2
Apple iOS, iPadOS, and macOS<15.2
15.2
Apple iOS, iPadOS, and macOS<15.2
iPhone OS<15.2
Apple iOS and macOS>=10.15<=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-security_update_2021-004
Apple iOS and macOS=10.15.7-security_update_2021-005
Apple iOS and macOS=10.15.7-security_update_2021-006
Apple iOS and macOS=10.15.7-security_update_2021-007
macOS>=11.0<11.6.2
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-2021-30973?

    CVE-2021-30973 is a vulnerability in Model I/O that allows for an out-of-bounds read due to insufficient input validation.

  • How does CVE-2021-30973 impact Apple Catalina?

    CVE-2021-30973 impacts Apple Catalina as it is listed as one of the affected software versions.

  • How can CVE-2021-30973 be exploited?

    CVE-2021-30973 can be exploited by an attacker who crafts a malicious input that triggers the out-of-bounds read vulnerability.

  • What is the severity of CVE-2021-30973?

    The severity of CVE-2021-30973 is not mentioned in the provided information. Please refer to the vendor's advisory for more details.

  • How can I fix CVE-2021-30973?

    To fix CVE-2021-30973, it is recommended to update to the latest version of the affected software as mentioned in the vendor's advisory.

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