medium
5.5
CWE
125
Advisory Published
CVE Published
Updated

CVE-2021-30687

First published: Mon May 24 2021(Updated: )

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted image may lead to disclosure of user information.

Credit: Hou JingYi @hjy79425575 Qihoo 360Hou JingYi @hjy79425575 Qihoo 360Hou JingYi @hjy79425575 Qihoo 360Hou JingYi @hjy79425575 Qihoo 360Hou JingYi @hjy79425575 Qihoo 360Hou JingYi @hjy79425575 Qihoo 360 product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPadOS<14.6
Apple iPhone OS<14.6
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-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<11.4
Apple tvOS<14.6
Apple watchOS<7.5
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple watchOS<7.5
7.5
Apple iOS<14.6
14.6
Apple iPadOS<14.6
14.6
Apple tvOS<14.6
14.6
Apple Mojave

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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-2021-30687?

    CVE-2021-30687 is a vulnerability in ImageIO that allows for an out-of-bounds read, which has been addressed with improved bounds checking.

  • Which software are affected by CVE-2021-30687?

    CVE-2021-30687 affects Apple tvOS 14.6, Apple watchOS 7.5, Apple macOS Big Sur 11.4, Apple Mojave, Apple Catalina, Apple iOS 14.6, and Apple iPadOS 14.6.

  • How severe is CVE-2021-30687?

    The severity of CVE-2021-30687 depends on the impact on the affected systems, but it has been addressed by Apple with improved bounds checking.

  • How do I fix CVE-2021-30687?

    To fix CVE-2021-30687, update the affected software to the recommended version provided by Apple.

  • Where can I find more information about CVE-2021-30687?

    You can find more information about CVE-2021-30687 on the official Apple security advisories: - [Apple support page 1](https://support.apple.com/en-us/HT212530) - [Apple support page 2](https://support.apple.com/en-us/HT212533) - [Apple support page 3](https://support.apple.com/en-us/HT212529)

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