CVE-2023-21253: Local persistent denial of service in PackageManager.GET_SIGNATURES

platform/frameworks/base Updated 02 Oct 2025

Summary

01/10/2023

Disclosed on

CVE-2023-21253

CVE

Yes i

Fix available

High

Severity

Not published

CVSS Score

CVE-2023-21253: In multiple locations, there is a possible way to crash multiple system services due to resource exhaustion. Affects platform/frameworks/base across 5 version ranges.

>= 11:0, < 11:2023-10-01 >= 12:0, < 12:2023-10-01 >= 12L:0, < 12L:2023-10-01 >= 13:0, < 13:2023-10-01 >= 14-next:0, < 14-next:2023-10-01

Fixed in 14-next:2023-10-01. How to fix ↓

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Background

The package under scrutiny is platform/frameworks/base in the Android ecosystem. This package is responsible for providing the fundamental building blocks and essential components for the Android operating system. It includes various system services and APIs that enable the functioning of Android devices. One of the functionalities provided by this package is PackageManager.GET_SIGNATURES, which allows retrieving the signatures associated with installed packages on the device.

Vulnerability Detail

The vulnerability identified as CVE-2023-21253 is a local persistent denial of service issue. It arises due to resource exhaustion in multiple locations within the platform/frameworks/base package. Exploiting this vulnerability can lead to a local denial of service attack without requiring any additional execution privileges or user interaction. The impact of this vulnerability is the potential crashing of multiple system services, which can disrupt the normal functioning of the Android device.

How To Fix

Minimum fixed version

14-next:2023-10-01

This is the first release that contains the fix.

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Workaround

No specific workaround has been mentioned for this vulnerability.

Conclusion

In conclusion, the CVE-2023-21253 vulnerability in the PackageManager.GET_SIGNATURES functionality of the platform/frameworks/base package can lead to local denial of service attacks. It is crucial to update the affected package to the fixed version or apply the necessary security patches to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.

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