VDB-223937 · CVE-2023-21071 · A-254028518

Google Android dhd_msgbuf.c dhd_prot_ioctcmplt_process out-of-bounds write

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Google Android. It has been rated as critical. Affected is the function dhd_prot_ioctcmplt_process of the file dhd_msgbuf.c. The manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2023-21071. Local access is required to approach this attack. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (version unknown). It has been rated as critical. This issue affects the function dhd_prot_ioctcmplt_process of the file dhd_msgbuf.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 dhd_prot_ioctcmplt_process of dhd_msgbuf.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-254028518References: N/A

The weakness was disclosed 03/25/2023 as A-254028518. The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2023-21071 since 11/03/2022. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/14/2023). 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Google

Name

Android

License

free

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
03/25/2023 +142 days 🔍
03/25/2023 +0 days 🔍
04/14/2023 +20 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-254028518
Status: Confirmed

CVE: CVE-2023-21071 (🔍)
GCVE (CVE): GCVE-0-2023-21071
GCVE (VulDB): GCVE-100-223937
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 03/25/2023 08:41
Updated: 04/14/2023 17:21
Changes: 03/25/2023 08:41 (42), 04/14/2023 17:21 (11)
Complete: 🔍
Cache ID: 216::103