CVE-2021-30954: High severity Apple tvOS vulnerability

Published Aug 24, 2021
·
Updated

A flaw was found in WebKitGTK. A type confusion issue was addressed with improved memory handling.

Reference: https://webkitgtk.org/security/WSA-2022-0001.html

Other sources

A type confusion issue was addressed with improved memory handling. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.

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

Credit

Kunlun Lab via Tianfu Cup, Kunlun Lab Kunlun Lab via Tianfu Cup, Kunlun Lab via Tianfu Cup

Affected Software

24 affected componentsFixes available
Apple tvOS<15.2
15.2
Apple WatchOS<8.3
8.3
Apple macOS Monterey<12.1
12.1
Apple Safari<15.2
15.2
Apple iOS<15.2
15.2
Apple iPadOS<15.2
15.2
Apple Safari<15.2
Apple iPadOS<15.2
Apple iPhone OS<15.2
Apple macOS>=12.0<12.1
Apple tvOS<15.2
Apple WatchOS<8.3
Fedoraproject Fedora=34
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
redhat/webkitgtk<2.32.4
2.32.4
debian/webkit2gtk
2.50.6-1~deb12u22.50.6-1~deb12u12.52.6-1~deb13u12.54.0-1~deb13u32.52.6-12.54.2-2
debian/wpewebkit
2.38.6-12.48.3-12.54.2-1
alpine/webkit2gtk<2.34.4-r0
2.34.4-r0
alpine/webkit2gtk<2.34.4-r0
2.34.4-r0
alpine/webkit2gtk<2.34.4-r0
2.34.4-r0
alpine/webkit2gtk<2.34.4-r0
2.34.4-r0
alpine/webkit2gtk<2.34.4-r0
2.34.4-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 15.2
  2. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 8.3
  3. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 12.1
  4. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 15.2
  5. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 15.2
  6. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 15.2
  7. Upgrade

    Upgrade redhat/webkitgtk to a version that resolves this vulnerability.

    Fixed in 2.32.4
  8. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.6-1~deb12u2Fixed in 2.50.6-1~deb12u1Fixed in 2.52.6-1~deb13u1Fixed in 2.54.0-1~deb13u3Fixed in 2.52.6-1Fixed in 2.54.2-2
  9. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.38.6-1Fixed in 2.48.3-1Fixed in 2.54.2-1
  10. Upgrade

    Upgrade alpine/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.34.4-r0
  11. Upgrade

    Upgrade macOS Monterey to a version that resolves this vulnerability.

    Fixed in 12.1
  12. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 15.2
  13. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 15.2
  14. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 8.3

Event History

Aug 24, 2021
CVE Published
via MITRE·06:50 PM
Data Sourced
via MITRE·06:50 PM
DescriptionWeakness
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·07:15 PM
DescriptionSeverityAffected Software
Jan 24, 2022
Data Sourced
via Red Hat·06:19 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2021-30954.

2

What is the title of the vulnerability?

The title of the vulnerability is WebKit. A type confusion issue was addressed with improved memory handling.

3

What software is affected by this vulnerability?

The affected software includes Apple macOS Monterey 12.1, Apple iOS up to version 15.2, Apple iPadOS up to version 15.2, Apple Safari up to version 15.2, Apple watchOS up to version 8.3, and Apple tvOS up to version 15.2.

4

How severe is CVE-2021-30954?

The severity of CVE-2021-30954 has not been specified.

5

How can I fix CVE-2021-30954?

To fix CVE-2021-30954, update your software to the latest available version provided by Apple.

Company

Resources

Contact

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