Huawei HarmonyOS GPU permission

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.
7.6$5k-$25k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Huawei HarmonyOS. This affects an unknown part of the component GPU. Such manipulation leads to permission. This vulnerability is uniquely identified as CVE-2021-46891. No exploit exists.

Detailsinfo

A vulnerability was found in Huawei HarmonyOS (affected version unknown). It has been rated as critical. Affected by this issue is an unknown functionality of the component GPU. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Vulnerability of incomplete read and write permission verification in the GPU module. Successful exploitation of this vulnerability may affect service confidentiality, integrity, and availability.

The weakness was disclosed 07/05/2023. The advisory is available at device.harmonyos.com. This vulnerability is handled as CVE-2021-46891 since 06/29/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/23/2023). This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/29/2023 🔍
07/05/2023 +6 days 🔍
07/05/2023 +0 days 🔍
07/23/2023 +18 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: device.harmonyos.com
Status: Confirmed

CVE: CVE-2021-46891 (🔍)
GCVE (CVE): GCVE-0-2021-46891
GCVE (VulDB): GCVE-100-232982

Entryinfo

Created: 07/05/2023 15:31
Updated: 07/23/2023 12:29
Changes: 07/05/2023 15:31 (37), 07/23/2023 12:29 (11)
Complete: 🔍
Cache ID: 216::103

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