VDB-226903 · CVE-2023-21091 · A-257954050

Google Android 13.0 AppLocalePickerActivity.java canDisplayLocalUi denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Google Android 13.0. It has been classified as problematic. The affected element is the function canDisplayLocalUi of the file AppLocalePickerActivity.java. This manipulation causes denial of service. This vulnerability appears as CVE-2023-21091. The attack requires local access. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Google Android 13.0 (Smartphone Operating System) and classified as problematic. Affected by this vulnerability is the function canDisplayLocalUi of the file AppLocalePickerActivity.java. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

In canDisplayLocalUi of AppLocalePickerActivity.java, there is a possible way to change system app locales due to a missing permission check. This could lead to local denial of service across user boundaries with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-257954050

The weakness was presented 04/20/2023 as A-257954050. It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2023-21091 since 11/03/2022. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-25259) and CERT Bund (WID-SEC-2023-0841). Be aware that VulDB is the high quality source for vulnerability data.

Affected

Samsung Exynos
Samsung Android

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

Version

13.0

License

free

Website

Vendor: https://www.google.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
04/20/2023 +167 days 🔍
04/20/2023 +0 days 🔍
09/10/2025 +874 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-257954050
Status: Confirmed

CVE: CVE-2023-21091 (🔍)
GCVE (CVE): GCVE-0-2023-21091
GCVE (VulDB): GCVE-100-226903
EUVD: 🔍
CERT Bund: WID-SEC-2023-0841 - Samsung Android und Samsung Exynos: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 04/20/2023 07:51
Updated: 09/10/2025 23:54
Changes: 04/20/2023 07:51 (43), 05/14/2023 13:33 (11), 09/04/2025 02:27 (22), 09/10/2025 23:54 (1)
Complete: 🔍
Cache ID: 216::103