Exploited
high
8.8
CWE
843
Advisory Published
CVE Published
Updated

CVE-2021-1789: Apple Multiple Products Type Confusion Vulnerability

First published: Tue Jan 26 2021(Updated: )

WebKit. A type confusion issue was addressed with improved state handling.

Credit: @S0rryMybad 360 Vulcan Team @S0rryMybad 360 Vulcan Team @S0rryMybad 360 Vulcan Team @S0rryMybad 360 Vulcan Team @S0rryMybad 360 Vulcan Team product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave
Apple watchOS<7.3
7.3
Apple tvOS<14.4
14.4
Apple Safari<14.0.3
14.0.3
Apple Multiple Products
Apple iPadOS<14.4
Apple iPhone OS<14.4
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_2019-004
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-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<11.2
Apple tvOS<14.4
Apple watchOS<7.3
Fedoraproject Fedora=32
Fedoraproject Fedora=33
WebKitGTK WebKitGTK<2.30.6

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

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-2021-1789.

  • Which Apple products are affected by this vulnerability?

    Multiple Apple products including Apple Multiple Products, Safari, macOS Big Sur, Catalina, Mojave, watchOS, iOS, iPadOS, and tvOS are affected.

  • What is the risk of this vulnerability?

    The vulnerability allows processing of maliciously crafted web content, leading to arbitrary code execution.

  • How can I fix this vulnerability?

    Apply the available security updates or patches provided by Apple for the affected products.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability on the following references: [Apple Support - HT212147](https://support.apple.com/en-us/HT212147), [Apple Support - HT212148](https://support.apple.com/en-us/HT212148), [Apple Support - HT212146](https://support.apple.com/en-us/HT212146).

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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203