CVE-2021-30705: Medium severity apple macos vulnerability

Published May 24, 2021
·
Updated

ImageIO. This issue was addressed with improved checks.

Other sources

This issue was addressed with improved checks. 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 ASTC file may disclose memory contents.

Credit

Ye Zhang(Baidu Security)

Affected Software

41 affected componentsFixes available
Apple macOS Big Sur<11.4
11.4
Apple tvOS<14.6
14.6
Apple Catalina
Apple Mojave
Apple WatchOS<7.5
7.5
Apple iOS<14.6
14.6
Apple iPadOS<14.6
14.6
Apple iPadOS<14.6
Apple iPhone OS<14.6
Apple iOS and macOS>=10.14<=10.14.5
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.4
Apple tvOS<14.6
Apple WatchOS<7.5

Event History

Sep 8, 2021
CVE Published
via MITRE·02:27 PM
Data Sourced
via MITRE·02:27 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2021-30705?

CVE-2021-30705 is a vulnerability in ImageIO that has been addressed with improved checks.

2

Which software is affected by CVE-2021-30705?

CVE-2021-30705 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.

3

How can I fix CVE-2021-30705?

To fix CVE-2021-30705, update your software to the specified versions: Apple tvOS 14.6, Apple watchOS 7.5, Apple macOS Big Sur 11.4, Apple iOS 14.6, or Apple iPadOS 14.6.

4

Where can I find more information about CVE-2021-30705?

More information about CVE-2021-30705 can be found on the Apple support pages: [link1], [link2], [link3].

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203