critical
9.3
CWE
787 20
Advisory Published
CVE Published
Updated

CVE-2020-27947: Input Validation

First published: Mon Dec 14 2020(Updated: )

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. An application may be able to execute arbitrary code with kernel privileges.

Credit: product-security@apple.com ABC Research s.r.o. Trend Micro Zero Day InitiativeLiu Long Ant Security Light

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.1
11.1
Apple Catalina
Apple Mojave
Apple Mac OS X>=10.14<10.14.6
Apple Mac OS X>=10.15<10.15.7
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_2019-006
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-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-supplemental_update
Apple macOS>=11.0<11.1.0

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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-2020-27947.

  • What is the affected software?

    The affected software includes macOS Big Sur up to version 11.1, Apple Catalina, and Apple Mojave.

  • What type of vulnerability is this?

    This is a memory corruption issue.

  • What has been done to address this vulnerability?

    This vulnerability has been addressed with improved input validation.

  • Where can I find more information about this vulnerability?

    More information about this vulnerability can be found at the following reference: [Apple Support](https://support.apple.com/en-us/HT212011)

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