critical
9.3
CWE
20 190
Advisory Published
CVE Published
Updated

CVE-2020-27911: Input Validation

First published: Thu Nov 05 2020(Updated: )

libxml2. An integer overflow was addressed through improved input validation.

Credit: found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iTunes for Windows<12.11
12.11
Apple iCloud for Windows<11.5
11.5
Apple macOS Big Sur<11.1
11.1
Apple Catalina
Apple Mojave
Apple macOS Big Sur<11.0.1
11.0.1
Apple watchOS<7.1
7.1
Apple tvOS<14.2
14.2
Apple iOS<14.2
14.2
Apple iPadOS<14.2
14.2
Apple Icloud Windows<11.5
Apple Itunes Windows<12.11
Apple iPadOS<14.2
Apple iPhone OS<14.2
Apple macOS>=11.0<11.0.1
Apple tvOS<14.2
Apple watchOS<7.1

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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-2020-27911?

    CVE-2020-27911 is a vulnerability in libxml2 that allows for integer overflow through improved input validation.

  • Which software versions are affected by CVE-2020-27911?

    CVE-2020-27911 affects Apple iOS up to version 14.2, Apple iPadOS up to version 14.2, Apple tvOS up to version 14.2, Apple iCloud for Windows up to version 11.5, Apple iTunes for Windows up to version 12.11, Apple macOS Big Sur up to version 11.0.1, Apple watchOS up to version 7.1, Apple macOS Big Sur up to version 11.1, Apple Catalina, and Apple Mojave.

  • How can I fix CVE-2020-27911 vulnerability?

    To fix CVE-2020-27911, Apple users should update their software to the latest version available.

  • Where can I find more information about CVE-2020-27911?

    You can find more information about CVE-2020-27911 on the official Apple support page: [link](https://support.apple.com/en-us/HT211929) [link](https://support.apple.com/en-us/HT211933) [link](https://support.apple.com/en-us/HT211930)

  • What are the Common Weakness Enumerations (CWE) associated with CVE-2020-27911?

    The CWEs associated with CVE-2020-27911 are CWE-20 (Improper Input Validation) and CWE-190 (Integer Overflow or Wraparound).

Company

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