CVE-2018-4437: Buffer Overflow

Published Dec 5, 2018
·
Updated

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.

Other sources

WebKit. Multiple memory corruption issues were addressed with improved memory handling.

Credit

HyungSeok Han, DongHyeon Oh, Sang Kil Cha(KAIST Softsec Lab), Korea

Affected Software

28 affected componentsFixes available
Apple tvOS<12.1.1
12.1.1
Apple WatchOS<5.1.2
5.1.2
Apple iCloud for Windows<7.9
7.9
Apple iTunes for Windows<12.9.2
12.9.2
Apple Safari<12.0.2
12.0.2
Apple iOS<12.1.1
12.1.1
Apple Safari<12.0.2
Apple iPhone OS<12.1.1
Apple tvOS<12.1.1
Apple WatchOS<5.1.2
Apple iCloud<7.9
Apple iTunes<12.9.2
Microsoft Windows
All of the following
Any of the following
Apple iCloud<7.9
Apple iTunes<12.9.2
Microsoft Windows
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0
alpine/webkit2gtk<2.22.7-r0
2.22.7-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 12.1.1
  2. Upgrade

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

    Fixed in 5.1.2
  3. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 7.9
  4. Upgrade

    Upgrade iTunes to a version that resolves this vulnerability.

    Fixed in 12.9.2
  5. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 12.0.2
  6. Upgrade

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

    Fixed in 12.1.1
  7. Upgrade

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

    Fixed in 2.22.7-r0
  8. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 12.1.1
  9. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 5.1.2
  10. Upgrade

    Upgrade iTunes for Windows to a version that resolves this vulnerability.

    Fixed in 12.9.2
  11. Upgrade

    Upgrade iCloud for Windows to a version that resolves this vulnerability.

    Fixed in 7.9

Event History

Apr 3, 2019
CVE Published
via MITRE·05:43 PM
Data Sourced
via MITRE·05:43 PM
DescriptionWeakness
Data Sourced
via NVD·06:29 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:29 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-2018-4437?

CVE-2018-4437 is a vulnerability in WebKit that allows memory corruption issues.

2

What software versions are affected by CVE-2018-4437?

Versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, and iCloud for Windows 7.9 are affected by CVE-2018-4437.

3

What is the severity of CVE-2018-4437?

CVE-2018-4437 has a severity of 8.8 (High).

4

How do I fix CVE-2018-4437?

To fix CVE-2018-4437, update your software to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, or iCloud for Windows 7.9.

5

Where can I find more information about CVE-2018-4437?

You can find more information about CVE-2018-4437 at the following references: [link1], [link2], [link3].

Company

Resources

Contact

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