Google Android lwis_device_i2c.c lwis_i2c_device_disable use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Google Android and classified as problematic. This impacts the function lwis_i2c_device_disable of the file lwis_device_i2c.c. The manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2023-21147. The attack needs to be performed locally. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Google Android (Smartphone Operating System) (the affected version unknown). This issue affects the function lwis_i2c_device_disable of the file lwis_device_i2c.c. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In lwis_i2c_device_disable of lwis_device_i2c.c, there is a possible UAF 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 kernelAndroid ID: A-269661912References: N/A

The weakness was released 06/28/2023 as A-269661912. It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2023-21147 since 11/03/2022. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/13/2025). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-25315). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
06/28/2023 +236 days 🔍
06/28/2023 +0 days 🔍
09/13/2025 +808 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-269661912
Status: Confirmed

CVE: CVE-2023-21147 (🔍)
GCVE (CVE): GCVE-0-2023-21147
GCVE (VulDB): GCVE-100-232571
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 06/28/2023 21:47
Updated: 09/13/2025 17:38
Changes: 06/28/2023 21:47 (40), 07/20/2023 15:54 (12), 09/13/2025 17:38 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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