CWE
119
Advisory Published
CVE Published
Updated

CVE-2018-4340: Buffer Overflow

First published: Mon Sep 17 2018(Updated: )

Kernel. A memory corruption issue was addressed with improved memory handling.

Credit: Brandon Azad Ian Beer Google Project ZeroMohamed Ghannam @_simo36 The UK's National Cyber Security Centre (NCSC) cc Trend MicroJuwei Lin @panicaII Trend Micro working with Trend MicroBrandon Azad Ian Beer Google Project ZeroMohamed Ghannam @_simo36 The UK's National Cyber Security Centre (NCSC) cc Trend Micro's Zero Day InitiativeJuwei Lin @panicaII Trend Micro working with Trend Micro's Zero Day InitiativeBrandon Azad Ian Beer Google Project ZeroMohamed Ghannam @_simo36 The UK's National Cyber Security Centre (NCSC) cc Trend MicroJuwei Lin @panicaII Trend Micro working with Trend MicroBrandon Azad Ian Beer Google Project ZeroMohamed Ghannam @_simo36 The UK's National Cyber Security Centre (NCSC) cc Trend MicroJuwei Lin @panicaII Trend Micro working with Trend MicroMohamed Ghannam @_simo36 Mohamed Ghannam @_simo36 cc Trend MicroJuwei Lin @panicaII Trend Micro working with Trend Micro product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPhone OS<12.0
Apple Mac OS X<10.14
Apple tvOS<12
Apple watchOS<5.0
Apple macOS Mojave<10.14
10.14
Apple watchOS<5
5
Apple iOS<12
12
Apple macOS Mojave<10.14.1
10.14.1
Apple High Sierra
Apple Sierra
Apple tvOS<12
12

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2018-4340.

  • What software versions are affected by this vulnerability?

    Versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, and watchOS 5 are affected.

  • What is the severity of CVE-2018-4340?

    The severity of CVE-2018-4340 is critical with a CVSS score of 7.8.

  • How can I fix this vulnerability?

    Update to iOS 12, macOS Mojave 10.14, tvOS 12, or watchOS 5 to fix this vulnerability.

  • Where can I find more information about CVE-2018-4340?

    You can find more information about CVE-2018-4340 at the following references: [https://support.apple.com/en-us/HT209193](https://support.apple.com/en-us/HT209193), [https://support.apple.com/kb/HT209106](https://support.apple.com/kb/HT209106), and [https://support.apple.com/kb/HT209107](https://support.apple.com/kb/HT209107).

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