CVE-2021-30934: Buffer Overflow

Published Aug 24, 2021
·
Updated

A buffer overflow 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.

Other sources

A flaw was found in WebKitGTK. A buffer overflow issue was addressed with improved memory handling.

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

— Red Hat

WebKit. A buffer overflow issue was addressed with improved memory handling.

Credit

Dani Biro

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
Fedoraproject Fedora=35
Debian Debian Linux=10.0
Debian Debian Linux=11.0
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·05:56 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 CVE-2021-30934?

CVE-2021-30934 is a buffer overflow vulnerability in WebKit that has been addressed with improved memory handling.

2

Which software is affected by CVE-2021-30934?

CVE-2021-30934 affects Apple macOS Monterey version up to 12.1, Apple iOS version up to 15.2, Apple iPadOS version up to 15.2, Apple Safari version up to 15.2, Apple watchOS version up to 8.3, and Apple tvOS version up to 15.2.

3

How can I fix the CVE-2021-30934 vulnerability?

To fix the CVE-2021-30934 vulnerability, make sure to update affected software to the specified remediation versions.

4

Where can I find more information about CVE-2021-30934?

You can find more information about CVE-2021-30934 on the Apple support page.

5

What is the Common Weakness Enumeration (CWE) ID associated with CVE-2021-30934?

The Common Weakness Enumeration (CWE) ID associated with CVE-2021-30934 is CWE-119.

Company

Resources

Contact

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