What is the severity of CVE-2023-21099?

CVE-2023-21099 has been classified as a high severity vulnerability due to the potential for local escalation of privilege.

How do I fix CVE-2023-21099?

To fix CVE-2023-21099, update affected devices to the latest version of Android that includes the security patches addressing this vulnerability.

Which versions of Android are affected by CVE-2023-21099?

CVE-2023-21099 affects Android versions 11.0, 12.0, 12.1, and 13.0.

Is user interaction required to exploit CVE-2023-21099?

No, user interaction is not needed for exploitation of CVE-2023-21099.

What kind of attack does CVE-2023-21099 enable?

CVE-2023-21099 enables a local escalation of privilege attack allowing unauthorized access to start foreground services.

Vulnerability/
CVE-2023-21099

high

7.8

3/4/2023

19/4/2023

5/2/2025

CVE-2023-21099

First published: Mon Apr 03 2023(Updated: )

In multiple methods of PackageInstallerSession.java, there is a possible way to start foreground services from the background due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-243377226

Credit: security@android.com

Affected Software	Affected Version	How to fix
Android
Android	=11.0
Android	=12.0
Android	=12.1
Android	=13.0

Remedy

https://source.android.com/security/bulletin/2023-04-01

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2023-21099?
CVE-2023-21099 has been classified as a high severity vulnerability due to the potential for local escalation of privilege.
How do I fix CVE-2023-21099?
To fix CVE-2023-21099, update affected devices to the latest version of Android that includes the security patches addressing this vulnerability.
Which versions of Android are affected by CVE-2023-21099?
CVE-2023-21099 affects Android versions 11.0, 12.0, 12.1, and 13.0.
Is user interaction required to exploit CVE-2023-21099?
No, user interaction is not needed for exploitation of CVE-2023-21099.
What kind of attack does CVE-2023-21099 enable?
CVE-2023-21099 enables a local escalation of privilege attack allowing unauthorized access to start foreground services.

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collector/android-source
source/Android
agent/software-canonical-lookup
agent/software-canonical-lookup-request
collector/nvd-api
source/NVD
collector/nvd-index
vendor/google
canonical/android
version/android/11.0
version/android/12.0
version/android/12.1
version/android/13.0

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Frequently Asked Questions

What is the severity of CVE-2023-21099?
CVE-2023-21099 has been classified as a high severity vulnerability due to the potential for local escalation of privilege.
How do I fix CVE-2023-21099?
To fix CVE-2023-21099, update affected devices to the latest version of Android that includes the security patches addressing this vulnerability.
Which versions of Android are affected by CVE-2023-21099?
CVE-2023-21099 affects Android versions 11.0, 12.0, 12.1, and 13.0.
Is user interaction required to exploit CVE-2023-21099?
No, user interaction is not needed for exploitation of CVE-2023-21099.
What kind of attack does CVE-2023-21099 enable?
CVE-2023-21099 enables a local escalation of privilege attack allowing unauthorized access to start foreground services.