VDB-207115 · CVE-2021-0946 · A-236846966

Google Android PVRSRVBridgePMRPDumpSymbolicAddr puiMemspaceNameInt uninitialized pointer

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Google Android. The impacted element is the function PVRSRVBridgePMRPDumpSymbolicAddr. This manipulation of the argument puiMemspaceNameInt causes uninitialized pointer. This vulnerability is registered as CVE-2021-0946. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (version now known). It has been declared as problematic. Affected by this vulnerability is the function PVRSRVBridgePMRPDumpSymbolicAddr. The manipulation of the argument puiMemspaceNameInt with an unknown input leads to a uninitialized pointer vulnerability. The CWE definition for the vulnerability is CWE-824. The product accesses or uses a pointer that has not been initialized. As an impact it is known to affect confidentiality. The summary by CVE is:

The method PVRSRVBridgePMRPDumpSymbolicAddr allocates puiMemspaceNameInt on the heap, fills the contents of the buffer via PMR_PDumpSymbolicAddr, and then copies the buffer to userspace. The method PMR_PDumpSymbolicAddr may fail, and if it does the buffer will be left uninitialized and despite the error will still be copied to userspace. Kernel leak of uninitialized heap data with no privs required.Product: AndroidVersions: Android SoCAndroid ID: A-236846966

The weakness was published 08/25/2022 as A-236846966. It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2021-0946 since 11/06/2020. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

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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: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Uninitialized pointer
CWE: CWE-824 / CWE-908
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

11/06/2020 🔍
08/25/2022 +656 days 🔍
08/25/2022 +0 days 🔍
09/25/2022 +31 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-236846966
Status: Confirmed

CVE: CVE-2021-0946 (🔍)
GCVE (CVE): GCVE-0-2021-0946
GCVE (VulDB): GCVE-100-207115
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 08/25/2022 08:31
Updated: 09/25/2022 14:23
Changes: 08/25/2022 08:31 (41), 09/25/2022 14:23 (11)
Complete: 🔍
Cache ID: 216::103