Details of VAR-202210-0413

ID

VAR-202210-0413

CVE

CVE-2021-46840

TITLE

Huawei of EMUI and HarmonyOS Out-of-bounds read vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2022-019227

DESCRIPTION

The HW_KEYMASTER module has an out-of-bounds access vulnerability in parameter set verification.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access. Huawei of EMUI and HarmonyOS Exists in an out-of-bounds read vulnerability.Information may be obtained and information may be tampered with

Trust: 1.71

sources: NVD: CVE-2021-46840 // JVNDB: JVNDB-2022-019227 // VULHUB: VHN-430151

AFFECTED PRODUCTS

vendor:	huawei	model:	emui	scope:	eq	version:	12.0.0	Trust: 1.0
vendor:	huawei	model:	harmonyos	scope:	eq	version:	2.0	Trust: 1.0
vendor:	huawei	model:	emui	scope:	eq	version:	11.0.1	Trust: 1.0
vendor:	huawei	model:	emui	scope:	-	version:	-	Trust: 0.8
vendor:	huawei	model:	harmonyos	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2022-019227 // NVD: CVE-2021-46840

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-46840
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-46840
value:	CRITICAL
Trust: 0.8
CNNVD:	CNNVD-202210-168
value:	CRITICAL
Trust: 0.6

nvd@nist.gov:	CVE-2021-46840
baseSeverity:	CRITICAL
baseScore:	9.1
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	5.2
version:	3.1
Trust: 1.0
NVD:	CVE-2021-46840
baseSeverity:	CRITICAL
baseScore:	9.1
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2022-019227 // CNNVD: CNNVD-202210-168 // NVD: CVE-2021-46840

PROBLEMTYPE DATA

problemtype:	CWE-125	Trust: 1.1
problemtype:	Out-of-bounds read (CWE-125) [NVD evaluation ]	Trust: 0.8

sources: VULHUB: VHN-430151 // JVNDB: JVNDB-2022-019227 // NVD: CVE-2021-46840

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202210-168

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202210-168

PATCH

title:

Huawei HarmonyOS Buffer error vulnerability fix

url:

http://123.124.177.30/web/xxk/bdxqById.tag?id=211150

Trust: 0.6

sources: CNNVD: CNNVD-202210-168

EXTERNAL IDS

db:	NVD	id:	CVE-2021-46840	Trust: 3.3
db:	JVNDB	id:	JVNDB-2022-019227	Trust: 0.8
db:	CNNVD	id:	CNNVD-202210-168	Trust: 0.6
db:	VULHUB	id:	VHN-430151	Trust: 0.1

sources: VULHUB: VHN-430151 // JVNDB: JVNDB-2022-019227 // CNNVD: CNNVD-202210-168 // NVD: CVE-2021-46840

REFERENCES

url:	https://consumer.huawei.com/en/support/bulletin/2022/10/	Trust: 2.5
url:	https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202210-0000001416095697	Trust: 2.5
url:	https://nvd.nist.gov/vuln/detail/cve-2021-46840	Trust: 0.8
url:	https://cxsecurity.com/cveshow/cve-2021-46840/	Trust: 0.6
url:	https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202210-0000001416375445	Trust: 0.6

sources: VULHUB: VHN-430151 // JVNDB: JVNDB-2022-019227 // CNNVD: CNNVD-202210-168 // NVD: CVE-2021-46840

SOURCES

db:	VULHUB	id:	VHN-430151
db:	JVNDB	id:	JVNDB-2022-019227
db:	CNNVD	id:	CNNVD-202210-168
db:	NVD	id:	CVE-2021-46840

LAST UPDATE DATE

2024-08-14T14:10:32.014000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-430151	date:	2022-10-18T00:00:00
db:	JVNDB	id:	JVNDB-2022-019227	date:	2023-10-24T08:20:00
db:	CNNVD	id:	CNNVD-202210-168	date:	2022-10-31T00:00:00
db:	NVD	id:	CVE-2021-46840	date:	2022-10-18T18:39:27.537

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-430151	date:	2022-10-14T00:00:00
db:	JVNDB	id:	JVNDB-2022-019227	date:	2023-10-24T00:00:00
db:	CNNVD	id:	CNNVD-202210-168	date:	2022-10-05T00:00:00
db:	NVD	id:	CVE-2021-46840	date:	2022-10-14T16:15:12.303