high
8.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2018-4118: Buffer Overflow

First published: Thu Mar 29 2018(Updated: )

An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Credit: Yuan Deng Antfound by OSS-Fuzz Jun Kokatsu @shhnjk an anonymous researcher Trend MicroHanming Zhang @4shitak4 Qihoo 360 Vulcan Teamnatashenka Google Project ZeroWanderingGlitch Trend MicroZach Markley likemeng Baidu Security Lab working with Trend MicroOmair Trend Micro product-security@apple.com Natalie Silvanovich Google Project Zero

Affected SoftwareAffected VersionHow to fix
debian/webkit2gtk
2.44.2-1~deb11u1
2.44.3-1~deb11u1
2.44.2-1~deb12u1
2.44.3-1~deb12u1
2.46.0-2
2.46.1-1
tvOS<11.3
11.3
Apple Mobile Safari<11.1
11.1
Apple Mobile Safari<11.1
iOS<11.3
tvOS<11.3
All of
Apple iCloud for Windows<7.4
Microsoft Windows
All of
Apple iTunes for Windows<12.7.4
Microsoft Windows
Ubuntu Linux=16.04
Ubuntu Linux=17.10
WebKitGTK+<2.20.4
Apple iOS, iPadOS, and watchOS<11.3
11.3
Apple iCloud<7.4
7.4
iStyle @cosme iPhone OS<11.3
Apple iCloud for Windows<7.4
Microsoft Windows
Apple iTunes for Windows<12.7.4
Ubuntu=16.04
Ubuntu=17.10

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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-2018-4118?

    CVE-2018-4118 is a vulnerability in the WebKit component that allows remote attackers to execute arbitrary code or cause a denial of service.

  • Which Apple products are affected by CVE-2018-4118?

    iOS before 11.3, Safari before 11.1, iCloud before 7.4 on Windows, iTunes before 12.7.4 on Windows, and tvOS before 11.3 are affected by CVE-2018-4118.

  • What is the severity of CVE-2018-4118?

    CVE-2018-4118 has a severity rating of 8.8 (high).

  • How can I fix CVE-2018-4118?

    To fix CVE-2018-4118, update to the latest version of the affected software, such as iOS 11.3, Safari 11.1, iCloud 7.4 on Windows, iTunes 12.7.4 on Windows, or tvOS 11.3.

  • Where can I find more information about CVE-2018-4118?

    You can find more information about CVE-2018-4118 at the following references: [SecurityTracker](http://www.securitytracker.com/id/1040604), [Gentoo](https://security.gentoo.org/glsa/201808-04), [Apple Support](https://support.apple.com/HT208693).

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