high
7.8
CWE
20 787
Advisory Published
CVE Published
Updated

CVE-2021-30759: Input Validation

First published: Mon Jul 19 2021(Updated: )

FontParser. A stack overflow was addressed with improved input validation.

Credit: hjy79425575 Trend Micro Zero Day Initiativehjy79425575 Trend Micro Zero Day Initiativehjy79425575 Trend Micro Zero Day Initiativehjy79425575 Trend Micro Zero Day Initiativehjy79425575 Trend Micro Zero Day Initiative product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPadOS<14.7
Apple iPhone OS<14.7
Apple Mac OS X=10.14
Apple Mac OS X=10.14.0
Apple Mac OS X=10.14.1
Apple Mac OS X=10.14.2
Apple Mac OS X=10.14.3
Apple Mac OS X=10.14.4
Apple Mac OS X=10.14.5
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
Apple Mac OS X=10.15.1
Apple Mac OS X=10.15.2
Apple Mac OS X=10.15.3
Apple Mac OS X=10.15.4
Apple Mac OS X=10.15.5
Apple Mac OS X=10.15.6
Apple Mac OS X=10.15.6-supplemental_update
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
Apple tvOS<14.7
Apple watchOS<7.6
Apple watchOS<7.6
7.6
Apple macOS Big Sur<11.5
11.5
Apple Catalina
Apple Mojave
Apple tvOS<14.7
14.7

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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-2021-30759?

    CVE-2021-30759 is a vulnerability in the FontParser component that allowed for a stack overflow, which has been addressed with improved input validation.

  • Which software versions are affected by CVE-2021-30759?

    CVE-2021-30759 affects Apple Mojave, Apple WatchOS up to version 7.6, Apple tvOS up to version 14.7, Apple Catalina, and Apple macOS Big Sur up to version 11.5.

  • How severe is the CVE-2021-30759 vulnerability?

    The severity of CVE-2021-30759 is not provided in the given information.

  • How can I fix the CVE-2021-30759 vulnerability?

    To fix the CVE-2021-30759 vulnerability, make sure to update your software to the latest version provided by Apple.

  • Where can I find more information about CVE-2021-30759?

    More information about CVE-2021-30759 can be found on the official Apple support website at the provided references.

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