Details of VAR-202202-0689

ID

VAR-202202-0689

CVE

CVE-2021-44246

TITLE

plural Totolink Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2022-004873

DESCRIPTION

Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain a stack overflow in the function setNoticeCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IpTo parameter. Totolink device A3100R , A830R , A720R Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. TOTOLink A3100R is a wireless router. TOTOLink A830R is a wireless dual-band router. TOTOLink A720R is a wireless router

Trust: 2.16

sources: NVD: CVE-2021-44246 // JVNDB: JVNDB-2022-004873 // CNVD: CNVD-2022-17126

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-17126

AFFECTED PRODUCTS

vendor:	totolink	model:	a830r	scope:	eq	version:	5.9c.4729_b20191112	Trust: 1.0
vendor:	totolink	model:	a720r	scope:	eq	version:	4.1.5cu.470_b20200911	Trust: 1.0
vendor:	totolink	model:	a3100r	scope:	eq	version:	4.1.2cu.5050_b20200504	Trust: 1.0
vendor:	totolink	model:	a830r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a3100r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a720r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a720r v4.1.5cu.470 b20200911	scope:	-	version:	-	Trust: 0.6
vendor:	totolink	model:	a3100r v4.1.2cu.5050 b20200504	scope:	-	version:	-	Trust: 0.6
vendor:	totolink	model:	a830r v5.9c.4729 b20191112	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2022-17126 // JVNDB: JVNDB-2022-004873 // NVD: CVE-2021-44246

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-44246
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-44246
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2022-17126
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202202-239
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-44246
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-2022-17126
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-2021-44246
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-2021-44246
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-2022-17126 // JVNDB: JVNDB-2022-004873 // CNNVD: CNNVD-202202-239 // NVD: CVE-2021-44246

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2022-004873 // NVD: CVE-2021-44246

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-239

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202202-239

PATCH

title:

Top Page

url:

https://www.totolink.net/

Trust: 0.8

sources: JVNDB: JVNDB-2022-004873

EXTERNAL IDS

db:	NVD	id:	CVE-2021-44246	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-004873	Trust: 0.8
db:	CNVD	id:	CNVD-2022-17126	Trust: 0.6
db:	CNNVD	id:	CNNVD-202202-239	Trust: 0.6

sources: CNVD: CNVD-2022-17126 // JVNDB: JVNDB-2022-004873 // CNNVD: CNNVD-202202-239 // NVD: CVE-2021-44246

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2021-44246	Trust: 2.0
url:	https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_2/2.md	Trust: 1.6

sources: CNVD: CNVD-2022-17126 // JVNDB: JVNDB-2022-004873 // CNNVD: CNNVD-202202-239 // NVD: CVE-2021-44246

SOURCES

db:	CNVD	id:	CNVD-2022-17126
db:	JVNDB	id:	JVNDB-2022-004873
db:	CNNVD	id:	CNNVD-202202-239
db:	NVD	id:	CVE-2021-44246

LAST UPDATE DATE

2024-11-23T22:36:53.915000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-17126	date:	2022-03-07T00:00:00
db:	JVNDB	id:	JVNDB-2022-004873	date:	2023-05-10T03:18:00
db:	CNNVD	id:	CNNVD-202202-239	date:	2022-03-24T00:00:00
db:	NVD	id:	CVE-2021-44246	date:	2024-11-21T06:30:39.933

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-17126	date:	2022-03-07T00:00:00
db:	JVNDB	id:	JVNDB-2022-004873	date:	2023-05-10T00:00:00
db:	CNNVD	id:	CNNVD-202202-239	date:	2022-02-04T00:00:00
db:	NVD	id:	CVE-2021-44246	date:	2022-02-04T02:15:07.827