CVE-2018-4386: Buffer Overflow

Q: What is CVE-2018-4386?

CVE-2018-4386 is a vulnerability in WebKit that allows for multiple memory corruption issues.

Q: Which versions are affected by CVE-2018-4386?

Versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8 are affected.

Q: What is the severity of CVE-2018-4386?

CVE-2018-4386 has a severity rating of 8.8 (High).

Q: How can I fix CVE-2018-4386?

To fix CVE-2018-4386, it is recommended to update to the latest versions of iOS, tvOS, watchOS, Safari, iTunes, and iCloud for Windows.

Q: Where can I find more information about CVE-2018-4386?

You can find more information about CVE-2018-4386 at the following references: [1](http://packetstormsecurity.com/files/155871/Sony-Playstation-4-Webkit-Code-Execution.html), [2](https://support.apple.com/kb/HT209192), [3](https://support.apple.com/kb/HT209194).

Published Oct 30, 2018

Updated

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.

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, lokihardt(Google Project Zero), zhunki(360 ESG Codesafe Team), ngg, alippai, DirtYiCE, KT(Tresorit working with Trend Micro), Yu Haiwan, Wu Hongjun(Nanyang Technological University working with Trend Micro), 010(Trend Micro)

Affected Software

13 affected componentsFixes available

Apple tvOS<12.1

12.1

Apple WatchOS<5.1

5.1

Apple iCloud for Windows<7.8

7.8

Apple iTunes for Windows<12.9.1

12.9.1

Apple Safari<12.0.1

12.0.1

Apple iOS<12.1

12.1

Apple Safari<12.0.1

Apple iPhone OS<12.1

Apple tvOS<12.1

Apple WatchOS<5.1

Apple iCloud<7.8

Apple iTunes<12.9.1

Microsoft Windows

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade tvOS to a version that resolves this vulnerability.
Fixed in 12.1
Upgrade
Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.
Fixed in 5.1
Upgrade
Upgrade Apple iCloud to a version that resolves this vulnerability.
Fixed in 7.8
Upgrade
Upgrade iTunes to a version that resolves this vulnerability.
Fixed in 12.9.1
Upgrade
Upgrade Safari to a version that resolves this vulnerability.
Fixed in 12.0.1
Upgrade
Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.
Fixed in 12.1
Upgrade
Upgrade Apple iOS to a version that resolves this vulnerability.
Fixed in 12.1
Upgrade
Upgrade Apple tvOS to a version that resolves this vulnerability.
Fixed in 12.1
Upgrade
Upgrade Apple watchOS to a version that resolves this vulnerability.
Fixed in 5.1
Upgrade
Upgrade Apple Safari to a version that resolves this vulnerability.
Fixed in 12.0.1
Upgrade
Upgrade Apple iTunes to a version that resolves this vulnerability.
Fixed in 12.9.1
Upgrade
Upgrade Apple iCloud for Windows to a version that resolves this vulnerability.
Fixed in 7.8

Event History

Apr 3, 2019

CVE Published

via MITRE·05:43 PM

Data Sourced

via MITRE·05:43 PM

DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

What is CVE-2018-4386?

CVE-2018-4386 is a vulnerability in WebKit that allows for multiple memory corruption issues.

Which versions are affected by CVE-2018-4386?