CVE-2021-46894 - Vulnerability Details - OpenCVE

Description

Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.

Published: 2023-07-06

Score: 9.8 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Huawei

HarmonyOS

unaffected

Version	Status	Constraints
`2.0.0`	affected	—

Huawei

EMUI

unaffected

Version	Status	Constraints
`12.0.0`	affected	—

Configuration 1 [-]

OR	cpe:2.3:o:huawei:emui:12.0.0:::::::*
	cpe:2.3:o:huawei:harmonyos:2.0.0:::::::*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-33544	Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00138.

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://consumer.huawei.com/en/support/bulletin/2023/7/
https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858

History

Tue, 19 Nov 2024 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Huawei Emui Harmonyos

MITRE

Status: PUBLISHED

Assigner: huawei

Published: 2023-07-06T12:23:59.118Z

Updated: 2024-11-19T18:55:13.946Z

Reserved: 2023-06-29T11:27:53.897Z

Link: CVE-2021-46894

Vulnrichment

Updated: 2024-08-04T05:17:42.982Z

NVD

Status : Modified

Published: 2023-07-06T13:15:09.967

Modified: 2024-11-21T06:34:52.483

Link: CVE-2021-46894

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-46894", "assignerOrgId": "25ac1063-e409-4190-8079-24548c77ea2e", "state": "PUBLISHED", "assignerShortName": "huawei", "dateReserved": "2023-06-29T11:27:53.897Z", "datePublished": "2023-07-06T12:23:59.118Z", "dateUpdated": "2024-11-19T18:55:13.946Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "HarmonyOS", "vendor": "Huawei", "versions": [{"status": "affected", "version": "2.0.0"}]}, {"defaultStatus": "unaffected", "product": "EMUI", "vendor": "Huawei", "versions": [{"status": "affected", "version": "12.0.0"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation."}], "value": "Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "description": "CWE-269 Improper Privilege Management", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "25ac1063-e409-4190-8079-24548c77ea2e", "shortName": "huawei", "dateUpdated": "2023-07-06T12:23:59.118Z"}, "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2023/7/"}, {"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.982Z"}, "title": "CVE Program Container", "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2023/7/", "tags": ["x_transferred"]}, {"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-11-19T18:55:00.567068Z", "id": "CVE-2021-46894", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-19T18:55:13.946Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2023/7/", "tags": ["x_transferred"]}, {"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.982Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46894", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-11-19T18:55:00.567068Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-19T18:55:09.403Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Huawei", "product": "HarmonyOS", "versions": [{"status": "affected", "version": "2.0.0"}], "defaultStatus": "unaffected"}, {"vendor": "Huawei", "product": "EMUI", "versions": [{"status": "affected", "version": "12.0.0"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2023/7/"}, {"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.", "supportingMedia": [{"type": "text/html", "value": "Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-269", "description": "CWE-269 Improper Privilege Management"}]}], "providerMetadata": {"orgId": "25ac1063-e409-4190-8079-24548c77ea2e", "shortName": "huawei", "dateUpdated": "2023-07-06T12:23:59.118Z"}}}, "cveMetadata": {"cveId": "CVE-2021-46894", "state": "PUBLISHED", "dateUpdated": "2024-11-19T18:55:13.946Z", "dateReserved": "2023-06-29T11:27:53.897Z", "assignerOrgId": "25ac1063-e409-4190-8079-24548c77ea2e", "datePublished": "2023-07-06T12:23:59.118Z", "assignerShortName": "huawei"}, "dataVersion": "5.1"}