critical
9.3
CWE
787
Advisory Published
CVE Published
Updated

CVE-2021-30735

First published: Mon May 24 2021(Updated: )

A malicious application may be able to execute arbitrary code with kernel privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An out-of-bounds write issue was addressed with improved bounds checking.

Credit: Jack Dates @ret2systems RET2 Systems IncJack Dates @ret2systems RET2 Systems Inc product-security@apple.com Jack Dates @ret2systems RET2 Systems Inc

Affected SoftwareAffected VersionHow to fix
Apple Catalina
Apple macOS Big Sur<11.4
11.4
Apple Mojave
Apple Mac OS X>=10.14.0<=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-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-supplemental_update
Apple macOS>=11.0.1<11.4

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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 for this issue?

    The vulnerability ID for this issue is CVE-2021-30735.

  • What is the severity of CVE-2021-30735?

    The severity of CVE-2021-30735 has not been specified.

  • What is the affected software for CVE-2021-30735?

    The affected software for CVE-2021-30735 includes Apple macOS Big Sur (up to version 11.4), Apple Mojave, and Apple Catalina.

  • How can a malicious application exploit CVE-2021-30735?

    A malicious application may be able to execute arbitrary code with kernel privileges using this vulnerability.

  • How can I fix CVE-2021-30735?

    To fix CVE-2021-30735, it is recommended to update to the latest version of the affected software provided by Apple.

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