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ID

VAR-202202-1233


CVE

CVE-2021-45991


TITLE

Tenda  router  G1  and  G3  Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2022-004676

DESCRIPTION

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddVpnUsers. This vulnerability allows attackers to cause a Denial of Service (DoS) via the vpnUsers parameter

Trust: 2.16

sources: NVD: CVE-2021-45991 // JVNDB: JVNDB-2022-004676 // CNVD: CNVD-2022-16172

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-16172

AFFECTED PRODUCTS

vendor:tendacnmodel:g1scope:eqversion:15.11.0.17\(9502\)_cn

Trust: 1.0

vendor:tendacnmodel:g3scope:eqversion:15.11.0.17\(9502\)_cn

Trust: 1.0

vendor:tendamodel:g3scope: - version: -

Trust: 0.8

vendor:tendamodel:g1scope: - version: -

Trust: 0.8

vendor:tendamodel:g1 and g3 15.11.0.17 cnscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-16172 // JVNDB: JVNDB-2022-004676 // NVD: CVE-2021-45991

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-45991
value: HIGH

Trust: 1.0

NVD: CVE-2021-45991
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-16172
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202202-263
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2021-45991
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2022-16172
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-45991
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-45991
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-16172 // JVNDB: JVNDB-2022-004676 // CNNVD: CNNVD-202202-263 // NVD: CVE-2021-45991

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:Out-of-bounds writing (CWE-787) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2022-004676 // NVD: CVE-2021-45991

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-263

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-263

PATCH

title:Top Pageurl:https://www.tenda.com.cn/default.html

Trust: 0.8

sources: JVNDB: JVNDB-2022-004676

EXTERNAL IDS

db:NVDid:CVE-2021-45991

Trust: 3.8

db:JVNDBid:JVNDB-2022-004676

Trust: 0.8

db:CNVDid:CNVD-2022-16172

Trust: 0.6

db:CNNVDid:CNNVD-202202-263

Trust: 0.6

sources: CNVD: CNVD-2022-16172 // JVNDB: JVNDB-2022-004676 // CNNVD: CNNVD-202202-263 // NVD: CVE-2021-45991

REFERENCES

url:https://exchange.xforce.ibmcloud.com/vulnerabilities/218954

Trust: 3.0

url:https://github.com/pjqwudi/my_vuln/blob/main/tenda/vuln_6/6.md

Trust: 2.2

url:https://nvd.nist.gov/vuln/detail/cve-2021-45991

Trust: 1.4

sources: CNVD: CNVD-2022-16172 // JVNDB: JVNDB-2022-004676 // CNNVD: CNNVD-202202-263 // NVD: CVE-2021-45991

SOURCES

db:CNVDid:CNVD-2022-16172
db:JVNDBid:JVNDB-2022-004676
db:CNNVDid:CNNVD-202202-263
db:NVDid:CVE-2021-45991

LAST UPDATE DATE

2024-11-23T22:10:54.222000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-16172date:2022-03-03T00:00:00
db:JVNDBid:JVNDB-2022-004676date:2023-04-27T08:19:00
db:CNNVDid:CNNVD-202202-263date:2022-02-14T00:00:00
db:NVDid:CVE-2021-45991date:2024-11-21T06:33:26.610

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-16172date:2022-03-02T00:00:00
db:JVNDBid:JVNDB-2022-004676date:2023-04-27T00:00:00
db:CNNVDid:CNNVD-202202-263date:2022-02-04T00:00:00
db:NVDid:CVE-2021-45991date:2022-02-04T02:15:08.763