high
8.8
CWE
416
Advisory Published
CVE Published
CVE Published
Updated

CVE-2018-4318: Use After Free

First published: Wed Sep 12 2018(Updated: )

A use after free issue was addressed with improved memory management. This issue affected versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7.

Credit: Ivan Fratric Google Project Zero product-security@apple.com

Affected SoftwareAffected VersionHow to fix
ubuntu/webkit2gtk<2.22.2-0ubuntu0.18.04.1
2.22.2-0ubuntu0.18.04.1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.2-1ubuntu1
2.22.2-1ubuntu1
ubuntu/webkit2gtk<2.22.0
2.22.0
debian/webkit2gtk
2.44.2-1~deb11u1
2.44.2-1~deb12u1
2.44.2-1
tvOS<12
12
Apple Mobile Safari<12
12
Apple iOS, iPadOS, and watchOS<12
12
Apple iCloud<7.7
7.7
Apple iTunes<12.9
12.9
Apple Mobile Safari<12
iStyle @cosme iPhone OS<12.0
tvOS<12
All of
Any of
Apple iCloud for Windows<7.7
Apple iTunes for Windows<12.9
Microsoft Windows
Apple iCloud for Windows<7.7
Apple iTunes for Windows<12.9
Microsoft Windows

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2018-4318?

    CVE-2018-4318 is a use after free vulnerability in WebKit, affecting versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, and iCloud for Windows 7.7.

  • How can this vulnerability be exploited?

    This vulnerability can be exploited by an attacker to execute arbitrary code or cause a denial of service.

  • What is the severity of CVE-2018-4318?

    CVE-2018-4318 has a severity score of 8.8 (high).

  • How can I fix CVE-2018-4318?

    To fix CVE-2018-4318, update to iOS 12 (or later), tvOS 12 (or later), Safari 12 (or later), iTunes 12.9 for Windows (or later), or iCloud for Windows 7.7 (or later).

  • Where can I find more information about CVE-2018-4318?

    You can find more information about CVE-2018-4318 at the following references: [Link 1](https://support.apple.com/kb/HT209106), [Link 2](https://support.apple.com/kb/HT209107), [Link 3](https://support.apple.com/kb/HT209109).

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