CVE-2020-27926: Use After Free

Published Nov 5, 2020
·
Updated

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2. Processing maliciously crafted web content may lead to arbitrary code execution.

Other sources

libxml2. A use after free issue was addressed with improved memory management.

Credit

found by OSS-Fuzz

Affected Software

7 affected componentsFixes available
Apple macOS<11.1
11.1
macOS Catalina
macOS Mojave
Apple iOS and iPadOS<14.2
14.2
Apple iOS, iPadOS, and macOS<14.2
14.2
Apple iOS, iPadOS, and macOS<14.2
iPhone OS<14.2

Event History

Dec 8, 2020
CVE Published
via MITRE·08:12 PM
Data Sourced
via MITRE·08:12 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-27926?

CVE-2020-27926 is a vulnerability in libxml2 that could allow an attacker to execute arbitrary code or cause a denial of service.

2

Which software versions are affected by CVE-2020-27926?

CVE-2020-27926 affects Apple iOS up to version 14.2, Apple iPadOS up to version 14.2, Apple macOS Big Sur up to version 11.1, Apple Catalina, and Apple Mojave.

3

What is the severity of CVE-2020-27926?

CVE-2020-27926 has a severity rating of critical.

4

How can I fix CVE-2020-27926?

To fix CVE-2020-27926, update your affected software to the latest available version provided by Apple.

5

Where can I find more information about CVE-2020-27926?

You can find more information about CVE-2020-27926 at the following references: [Apple Support Article 1](https://support.apple.com/en-us/HT211929) and [Apple Support Article 2](https://support.apple.com/en-us/HT212011).

Contact

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