high
8.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2018-4120: 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
2.46.0-2~deb12u1
2.46.0-2
2.46.1-2
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 the vulnerability ID of this issue?

    The vulnerability ID is CVE-2018-4120.

  • Which Apple products are affected by this vulnerability?

    The vulnerability affects iOS before 11.3, Safari before 11.1, iCloud before 7.4 on Windows, and iTunes before 12.7.4 on Windows.

  • What component is involved in this vulnerability?

    The vulnerability involves the "WebKit" component.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is high (CVSSv3 score: 8.8).

  • Are there any known references for this vulnerability?

    Yes, you can find more information about this vulnerability at the following references: [SecurityTracker](http://www.securitytracker.com/id/1040604), [Gentoo GLSA](https://security.gentoo.org/glsa/201808-04), and [Apple Support](https://support.apple.com/HT208693).

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