CVE-2021-30952: Apple Multiple Products Integer Overflow or Wraparound Vulnerability

Published Aug 24, 2021
·
Updated

A flaw was found in WebKitGTK. An integer overflow was addressed with improved input validation.

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

Other sources

An integer overflow was addressed with improved input validation. 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.

Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.

— CISA

WebKit. An integer overflow was addressed with improved input validation.

Credit

@@18f, @@jq0904(DBAPP Security)

Affected Software

22 affected componentsFixes available
debian/webkit2gtk
2.36.4-1~deb10u12.38.6-0+deb10u12.40.5-1~deb11u12.42.1-1~deb11u22.40.5-1~deb12u12.42.1-1~deb12u12.42.1-2
debian/wpewebkit
2.38.6-1~deb11u12.38.6-12.42.1-1
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
Apple Multiple Products
WebKitGTK WebKitGTK<2.34.4
wpewebkit WPE WebKit<2.34.4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 2.36.4-1~deb10u1Fixed in 2.38.6-0+deb10u1Fixed in 2.40.5-1~deb11u1Fixed in 2.42.1-1~deb11u2Fixed in 2.40.5-1~deb12u1Fixed in 2.42.1-1~deb12u1Fixed in 2.42.1-2
  2. Upgrade

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

    Fixed in 2.38.6-1~deb11u1Fixed in 2.38.6-1Fixed in 2.42.1-1
  3. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 15.2
  4. Upgrade

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

    Fixed in 8.3
  5. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 12.1
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 15.2
  7. Upgrade

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

    Fixed in 15.2
  8. Upgrade

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

    Fixed in 15.2
  9. Upgrade

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

    Fixed in 2.32.4
  10. Upgrade

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

    Fixed in 2.36.4-1~deb10u1
  11. Upgrade

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

    Fixed in 2.38.6-0+deb10u1
  12. Upgrade

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

    Fixed in 2.40.5-1~deb11u1
  13. Upgrade

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

    Fixed in 2.42.1-1~deb11u2
  14. Upgrade

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

    Fixed in 2.40.5-1~deb12u1
  15. Upgrade

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

    Fixed in 2.42.1-1~deb12u1
  16. Upgrade

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

    Fixed in 2.42.1-2
  17. Upgrade

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

    Fixed in 2.38.6-1~deb11u1
  18. Upgrade

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

    Fixed in 2.38.6-1
  19. Upgrade

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

    Fixed in 2.42.1-1
  20. Compensating control

    Apply mitigations per vendor instructions; for cloud services follow applicable BOD 22-01 guidance; if mitigations are unavailable, discontinue use of the affected product until a vendor-provided fix is applied.

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
Jan 24, 2022
Data Sourced
via Red Hat·06:03 PM
DescriptionSeverityAffected Software
Mar 5, 2026
Known Exploited
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
RemedyDescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-30952?

CVE-2021-30952 is a vulnerability in WebKit where an integer overflow was addressed with improved input validation.

2

Which software versions are affected by CVE-2021-30952?

CVE-2021-30952 affects macOS Monterey 12.1, Safari 15.2, iOS 15.2, iPadOS 15.2, watchOS 8.3, and tvOS 15.2.

3

How can I fix CVE-2021-30952?

To fix CVE-2021-30952, update your software to the latest available version provided by Apple.

4

Where can I find more information about CVE-2021-30952?

You can find more information about CVE-2021-30952 on the Apple security advisory page linked in the references.

5

What is the Common Weakness Enumeration (CWE) ID for CVE-2021-30952?

CVE-2021-30952 is associated with CWE-20 and CWE-190.

Company

Resources

Contact

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