What is the severity of CVE-2021-39804?

CVE-2021-39804 has been classified as a medium severity vulnerability due to its potential for remote persistent denial of service.

How do I fix CVE-2021-39804?

To fix CVE-2021-39804, ensure that you update your Android device to the latest version released by Google that addresses this vulnerability.

What versions of Android are affected by CVE-2021-39804?

CVE-2021-39804 affects Android versions 11.0, 12.0, and 12.1.

What type of attack does CVE-2021-39804 enable?

CVE-2021-39804 enables a possible crash that can lead to remote persistent denial of service through user interaction.

Is user interaction required for exploiting CVE-2021-39804?

Yes, user interaction is required to exploit the vulnerability identified as CVE-2021-39804.

Vulnerability/
CVE-2021-39804

medium

6.5

CWE

476

4/4/2022

12/4/2022

4/8/2024

CVE-2021-39804: Null Pointer Dereference

First published: Mon Apr 04 2022(Updated: )

In reinit of HeifDecoderImpl.cpp, there is a possible crash due to a missing null check. This could lead to remote persistent denial of service in the file picker with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-215002587

Credit: security@android.com

Affected Software	Affected Version	How to fix
Google Android	=11.0
Google Android	=12.0
Google Android	=12.1

Remedy

https://source.android.com/security/bulletin/2022-04-01

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-39804?
CVE-2021-39804 has been classified as a medium severity vulnerability due to its potential for remote persistent denial of service.
How do I fix CVE-2021-39804?
To fix CVE-2021-39804, ensure that you update your Android device to the latest version released by Google that addresses this vulnerability.
What versions of Android are affected by CVE-2021-39804?
CVE-2021-39804 affects Android versions 11.0, 12.0, and 12.1.
What type of attack does CVE-2021-39804 enable?
CVE-2021-39804 enables a possible crash that can lead to remote persistent denial of service through user interaction.
Is user interaction required for exploiting CVE-2021-39804?
Yes, user interaction is required to exploit the vulnerability identified as CVE-2021-39804.

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collector/nvd-index
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collector/android-source
source/Android
agent/software-canonical-lookup
agent/author
agent/weakness
agent/severity
agent/references
agent/remedy
agent/softwarecombine
agent/description
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/tags
agent/event
agent/source
vendor/google
canonical/google android
version/google android/11.0
version/google android/12.0
version/google android/12.1

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Frequently Asked Questions

What is the severity of CVE-2021-39804?
CVE-2021-39804 has been classified as a medium severity vulnerability due to its potential for remote persistent denial of service.
How do I fix CVE-2021-39804?
To fix CVE-2021-39804, ensure that you update your Android device to the latest version released by Google that addresses this vulnerability.
What versions of Android are affected by CVE-2021-39804?
CVE-2021-39804 affects Android versions 11.0, 12.0, and 12.1.
What type of attack does CVE-2021-39804 enable?
CVE-2021-39804 enables a possible crash that can lead to remote persistent denial of service through user interaction.
Is user interaction required for exploiting CVE-2021-39804?
Yes, user interaction is required to exploit the vulnerability identified as CVE-2021-39804.