CVE-2020-3842: High severity Apple tvOS vulnerability

Published Jan 28, 2020
·
Updated

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.

Other sources

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

Credit

Ned Williamson(Google Project Zero), Corellium, Xiaolong Bai, Min (Spark) Zheng(Alibaba Inc), Luyi Xing(Indiana University Bloomington)

Affected Software

12 affected componentsFixes available
Apple tvOS<13.3.1
13.3.1
Apple macOS Catalina<10.15.3
10.15.3
Apple Mojave
Apple High Sierra
Apple WatchOS<6.1.2
6.1.2
Apple iOS<13.3.1
13.3.1
Apple iPadOS<13.3.1
13.3.1
Apple iPadOS<13.3.1
Apple iPhone OS<13.3.1
Apple iOS and macOS<10.15.3
Apple tvOS<13.3.1
Apple WatchOS<6.1.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 13.3.1
  2. Upgrade

    Upgrade macOS Catalina to a version that resolves this vulnerability.

    Fixed in 10.15.3
  3. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 6.1.2
  4. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 13.3.1
  5. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 13.3.1
  6. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 13.3.1
  7. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 13.3.1
  8. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 6.1.2

Event History

Feb 27, 2020
CVE Published
via MITRE·08:45 PM
Data Sourced
via MITRE·08:45 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Sep 13, 58461
Event
12:44 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2020-3842?

CVE-2020-3842 is a memory corruption issue in the Kernel that was addressed with improved memory handling.

2

Which software is affected by CVE-2020-3842?

CVE-2020-3842 affects multiple software products, including Apple watchOS, tvOS, iOS, iPadOS, macOS Catalina, Mojave, and High Sierra.

3

What is the severity of CVE-2020-3842?

The severity of CVE-2020-3842 is not specified in the information provided.

4

How can I fix CVE-2020-3842?

To fix CVE-2020-3842, you should update your affected software products to the versions specified in the vendor's official remediation document.

5

Where can I find more information about CVE-2020-3842?

You can find more information about CVE-2020-3842 in the official Apple support documents: [link1], [link2], [link3].

Company

Resources

Contact

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