critical
9.3
CWE
74
Advisory Published
CVE Published
Updated

CVE-2021-30777

First published: Wed Jul 21 2021(Updated: )

An injection issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. A malicious application may be able to gain root privileges.

Credit: Tim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plcTim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plc product-security@apple.com Tim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plc

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.5
11.5
Apple Catalina
Apple Mojave
Apple Mac OS X>=10.14<=10.14.5
Apple Mac OS X>=10.15<=10.15.6
Apple Mac OS X=10.14.6
Apple Mac OS X=10.14.6-security_update_2019-001
Apple Mac OS X=10.14.6-security_update_2019-002
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2020-004
Apple Mac OS X=10.14.6-security_update_2020-005
Apple Mac OS X=10.14.6-security_update_2020-006
Apple Mac OS X=10.14.6-security_update_2020-007
Apple Mac OS X=10.14.6-security_update_2021-001
Apple Mac OS X=10.14.6-security_update_2021-002
Apple Mac OS X=10.14.6-security_update_2021-003
Apple Mac OS X=10.14.6-security_update_2021-004
Apple Mac OS X=10.14.6-supplemental_update
Apple Mac OS X=10.14.6-supplemental_update_2
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2020-005
Apple Mac OS X=10.15.7-security_update_2020-007
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-supplemental_update
Apple macOS>=11.0<11.5

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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 the vulnerability ID of this issue?

    The vulnerability ID is CVE-2021-30777.

  • What is the description of this vulnerability?

    The vulnerability is an injection issue in CoreStorage that has been addressed with improved validation.

  • Which software versions are affected by this vulnerability?

    The affected software versions are Apple Mojave, Apple Catalina, and Apple macOS Big Sur up to version 11.5.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your Apple Mojave, Apple Catalina, or Apple macOS Big Sur to version 11.5 or later.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the following Apple support pages: [Apple Support Page 1](https://support.apple.com/en-us/HT212600), [Apple Support Page 2](https://support.apple.com/en-us/HT212602), [Apple Support Page 3](https://support.apple.com/en-us/HT212603).

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