CVE-2018-4392: Buffer Overflow

Q: What is CVE-2018-4392?

CVE-2018-4392 is a vulnerability in WebKit that allows for multiple memory corruption issues.

Q: Which versions of iOS are affected by CVE-2018-4392?

Versions prior to iOS 12.1 are affected by CVE-2018-4392.

Q: Which versions of Safari are affected by CVE-2018-4392?

Safari version 12.0.1 and prior are affected by CVE-2018-4392.

Q: How can I fix CVE-2018-4392 on my device?

Update to iOS 12.1 or later to fix CVE-2018-4392 on your device.

Q: Where can I find more information about CVE-2018-4392?

You can find more information about CVE-2018-4392 on the Apple support website.

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 iOS to a version that resolves this vulnerability.
Fixed in 12.1
Upgrade
Upgrade watchOS to a version that resolves this vulnerability.
Fixed in 5.1
Upgrade
Upgrade 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-2018-4392?

CVE-2018-4392 is a vulnerability in WebKit that allows for multiple memory corruption issues.

Which versions of iOS are affected by CVE-2018-4392?