Google Android f_accessory.c acc_ctrlrequest_composite out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Google Android. This affects the function acc_ctrlrequest_composite of the file f_accessory.c. The manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2023-20941. It is possible to launch the attack on the physical device. There is no available exploit. 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) (version now known). This issue affects the function acc_ctrlrequest_composite of the file f_accessory.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In acc_ctrlrequest_composite of f_accessory.c, there is a possible out of bounds write due to a missing bounds check. This could lead to physical escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-264029575References: Upstream kernel

The weakness was presented 04/20/2023 as A-264029575. It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2023-20941 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 vulnerability database at EUVD (EUVD-2023-25109). 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: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.6
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

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 🔍
04/20/2023 +167 days 🔍
04/20/2023 +0 days 🔍
09/05/2025 +869 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-264029575
Status: Confirmed

CVE: CVE-2023-20941 (🔍)
GCVE (CVE): GCVE-0-2023-20941
GCVE (VulDB): GCVE-100-226883
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 04/20/2023 07:43
Updated: 09/05/2025 03:38
Changes: 04/20/2023 07:43 (42), 05/14/2023 11:27 (11), 09/05/2025 03:38 (15)
Complete: 🔍
Cache ID: 216::103

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

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