Details of VAR-202004-1638

ID

VAR-202004-1638

CVE

CVE-2018-21151

TITLE

plural NETGEAR Classic buffer overflow vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2018-016325

DESCRIPTION

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D7800 before 1.0.1.34, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR4300v2 before 1.0.0.54, and WNDR4500v3 before 1.0.0.54. plural NETGEAR A classic buffer overflow vulnerability exists on the device.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR R7800, etc. are all products of NETGEAR. NETGEAR R7800 is a wireless router. NETGEAR D7800 is a wireless modem. NETGEAR WNDR4300 is a wireless router. The vulnerability stems from the fact that when the network system or product performs operations on the memory, the data boundary is not correctly verified, resulting in incorrect read and write operations to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2018-21151 // JVNDB: JVNDB-2018-016325 // CNVD: CNVD-2021-52964

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-52964

AFFECTED PRODUCTS

vendor:	netgear	model:	d7800	scope:	lt	version:	1.0.1.34	Trust: 1.6
vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.42	Trust: 1.6
vendor:	netgear	model:	r8900	scope:	lt	version:	1.0.3.10	Trust: 1.6
vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.3.10	Trust: 1.6
vendor:	netgear	model:	wndr4500	scope:	lt	version:	1.0.0.54	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.0.54	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.26	Trust: 1.0
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.34	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.26	Trust: 0.8
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.42	Trust: 0.8
vendor:	netgear	model:	r8900	scope:	eq	version:	1.0.3.10	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.3.10	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.54	Trust: 0.8
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.54	Trust: 0.8
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.26	Trust: 0.6
vendor:	netgear	model:	wndr4300v2	scope:	lt	version:	1.0.0.54	Trust: 0.6
vendor:	netgear	model:	wndr4500v3	scope:	lt	version:	1.0.0.54	Trust: 0.6

sources: CNVD: CNVD-2021-52964 // JVNDB: JVNDB-2018-016325 // NVD: CVE-2018-21151

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21151
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21151
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016325
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2021-52964
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1948
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2018-21151
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	5.1
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2018-016325
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2021-52964
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	5.1
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21151
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2018-21151
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2018-016325
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-52964 // JVNDB: JVNDB-2018-016325 // CNNVD: CNNVD-202004-1948 // NVD: CVE-2018-21151 // NVD: CVE-2018-21151

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2018-016325 // NVD: CVE-2018-21151

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1948

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1948

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016325

PATCH

title:	Security Advisory for Post-Authentication Buffer Overflow on Some Gateways and Routers, PSV-2017-3154	url:	https://kb.netgear.com/000059482/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Gateways-and-Routers-PSV-2017-3154	Trust: 0.8
title:	Patch for NETGEAR buffer overflow vulnerability (CNVD-2021-52964)	url:	https://www.cnvd.org.cn/patchInfo/show/280066	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116717	Trust: 0.6

sources: CNVD: CNVD-2021-52964 // JVNDB: JVNDB-2018-016325 // CNNVD: CNNVD-202004-1948

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21151	Trust: 3.0
db:	JVNDB	id:	JVNDB-2018-016325	Trust: 0.8
db:	CNVD	id:	CNVD-2021-52964	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1948	Trust: 0.6

sources: CNVD: CNVD-2021-52964 // JVNDB: JVNDB-2018-016325 // CNNVD: CNNVD-202004-1948 // NVD: CVE-2018-21151

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21151	Trust: 2.0
url:	https://kb.netgear.com/000059482/security-advisory-for-post-authentication-buffer-overflow-on-some-gateways-and-routers-psv-2017-3154	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21151	Trust: 0.8

sources: CNVD: CNVD-2021-52964 // JVNDB: JVNDB-2018-016325 // CNNVD: CNNVD-202004-1948 // NVD: CVE-2018-21151

SOURCES

db:	CNVD	id:	CNVD-2021-52964
db:	JVNDB	id:	JVNDB-2018-016325
db:	CNNVD	id:	CNNVD-202004-1948
db:	NVD	id:	CVE-2018-21151

LAST UPDATE DATE

2024-11-23T23:04:24.826000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-52964	date:	2021-07-21T00:00:00
db:	JVNDB	id:	JVNDB-2018-016325	date:	2020-05-25T00:00:00
db:	CNNVD	id:	CNNVD-202004-1948	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21151	date:	2024-11-21T04:03:01.560

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-52964	date:	2020-07-21T00:00:00
db:	JVNDB	id:	JVNDB-2018-016325	date:	2020-05-25T00:00:00
db:	CNNVD	id:	CNNVD-202004-1948	date:	2020-04-22T00:00:00
db:	NVD	id:	CVE-2018-21151	date:	2020-04-22T20:15:11.167