CVE-2021-30734: High severity Apple macOS Big Sur vulnerability

Published May 24, 2021
·
Updated

Multiple memory corruption issues were addressed with improved memory handling.

Credit

an anonymous researcher, mipu94(SEFCOM lab), ASU.(Trend Micro Zero Day Initiative), Jack Dates@@ret2systems(RET2 Systems Inc), an anonymous researcher, mipu94(SEFCOM lab), ASU.(Trend Micro Zero Day Initiative), Jack Dates@@ret2systems(RET2 Systems Inc), an anonymous researcher, mipu94(SEFCOM lab), ASU.(Trend Micro Zero Day Initiative), Jack Dates@@ret2systems(RET2 Systems Inc), an anonymous researcher, mipu94(SEFCOM lab), ASU.(Trend Micro Zero Day Initiative), Jack Dates@@ret2systems(RET2 Systems Inc), an anonymous researcher, mipu94(SEFCOM lab), ASU.(Trend Micro Zero Day Initiative), Jack Dates@@ret2systems(RET2 Systems Inc)

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 macOS Big Sur<11.4
11.4
Apple tvOS<14.6
14.6
Apple WatchOS<7.5
7.5
Apple Safari<14.1.1
14.1.1
Apple iOS<14.6
14.6
Apple iPadOS<14.6
14.6
Apple Safari<14.1.1
Apple iPadOS<14.6
Apple iPhone OS<14.6
Apple macOS>=11.0.1<11.4
Apple tvOS<14.6
Apple WatchOS<7.5
redhat/webkitgtk<2.32.3
2.32.3
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0
alpine/webkit2gtk<2.32.3-r0
2.32.3-r0

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 Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.4
  4. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 14.6
  5. Upgrade

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

    Fixed in 7.5
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 14.1.1
  7. Upgrade

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

    Fixed in 14.6
  8. Upgrade

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

    Fixed in 14.6
  9. Upgrade

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

    Fixed in 2.32.3
  10. Upgrade

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

    Fixed in 2.32.3-r0
  11. Upgrade

    Upgrade Apple tvOS to a version that resolves this vulnerability.

    Fixed in 14.6
  12. Upgrade

    Upgrade Apple iOS to a version that resolves this vulnerability.

    Fixed in 14.6
  13. Upgrade

    Upgrade Apple iPadOS to a version that resolves this vulnerability.

    Fixed in 14.6
  14. Upgrade

    Upgrade macOS Big Sur to a version that resolves this vulnerability.

    Fixed in 11.4
  15. Upgrade

    Upgrade Apple watchOS to a version that resolves this vulnerability.

    Fixed in 7.5

Event History

Jul 28, 2021
Data Sourced
via Red Hat·01:42 PM
DescriptionSeverityAffected Software
Sep 8, 2021
CVE Published
via MITRE·01:42 PM
Data Sourced
via MITRE·01:42 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·02:15 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 of this issue?

The vulnerability ID of this issue is CVE-2021-30734.

2

What software products are affected by this vulnerability?

The affected software products are Apple tvOS up to version 14.6, Apple watchOS up to version 7.5, Apple Safari up to version 14.1.1, Apple macOS Big Sur up to version 11.4, Apple iOS up to version 14.6, and Apple iPadOS up to version 14.6.

3

What is the severity of CVE-2021-30734?

The severity of CVE-2021-30734 has not been specified.

4

How can I fix the vulnerability?

To fix the vulnerability, update the affected software products to their respective remedied versions.

5

Where can I find more information about this vulnerability?

You can find more information about this vulnerability on the following references: [link1], [link2], [link3].

Company

Resources

Contact

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