Details of VAR-202004-1547

ID

VAR-202004-1547

CVE

CVE-2018-21111

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016320

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D3600 before 1.0.0.75, D6000 before 1.0.0.75, D6100 before 1.0.0.60, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.4.2, WNDR3700v4 before 1.0.2.102, WNDR4300 before 1.0.2.104, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, and WNR2000v5 before 1.0.0.66. plural NETGEAR The device is vulnerable to out-of-bounds writes.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 D3600 is a wireless modem. NETGEAR WNDR3700 is a wireless router. The vulnerability stems from the fact that the network system or product performs an operation on the memory, and the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. The attacker The vulnerability can be exploited to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2018-21111 // JVNDB: JVNDB-2018-016320 // CNVD: CNVD-2020-31243

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-31243

AFFECTED PRODUCTS

vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	r8900	scope:	lt	version:	1.0.4.2	Trust: 1.6
vendor:	netgear	model:	d3600	scope:	lt	version:	1.0.0.75	Trust: 1.6
vendor:	netgear	model:	d6000	scope:	lt	version:	1.0.0.75	Trust: 1.6
vendor:	netgear	model:	d6100	scope:	lt	version:	1.0.0.60	Trust: 1.6
vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.4.2	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.104	Trust: 1.6
vendor:	netgear	model:	wndr3700	scope:	lt	version:	1.0.2.102	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.0.58	Trust: 1.0
vendor:	netgear	model:	wndr4500	scope:	lt	version:	1.0.0.58	Trust: 1.0
vendor:	netgear	model:	wnr2000	scope:	lt	version:	1.0.0.66	Trust: 1.0
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.75	Trust: 0.8
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.75	Trust: 0.8
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.60	Trust: 0.8
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.52	Trust: 0.8
vendor:	netgear	model:	r8900	scope:	eq	version:	1.0.4.2	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.4.2	Trust: 0.8
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.102	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.58	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.104	Trust: 0.8
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.58	Trust: 0.8
vendor:	netgear	model:	wndr4300v2	scope:	lt	version:	1.0.0.58	Trust: 0.6
vendor:	netgear	model:	wndr4500v3	scope:	lt	version:	1.0.0.58	Trust: 0.6
vendor:	netgear	model:	wndr3700v4	scope:	lt	version:	1.0.2.102	Trust: 0.6
vendor:	netgear	model:	wnr2000v5	scope:	lt	version:	1.0.0.66	Trust: 0.6

sources: CNVD: CNVD-2020-31243 // JVNDB: JVNDB-2018-016320 // NVD: CVE-2018-21111

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21111
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21111
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016320
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-31243
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1893
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2018-21111
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-2018-016320
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-2020-31243
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-2018-21111
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-2018-21111
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-2018-016320
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-2020-31243 // JVNDB: JVNDB-2018-016320 // CNNVD: CNNVD-202004-1893 // NVD: CVE-2018-21111 // NVD: CVE-2018-21111

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016320 // NVD: CVE-2018-21111

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1893

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1893

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016320

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers and Modem Routers, PSV-2018-0115	url:	https://kb.netgear.com/000060440/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Modem-Routers-PSV-2018-0115	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-31243)	url:	https://www.cnvd.org.cn/patchInfo/show/219859	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116669	Trust: 0.6

sources: CNVD: CNVD-2020-31243 // JVNDB: JVNDB-2018-016320 // CNNVD: CNNVD-202004-1893

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21111	Trust: 3.0
db:	JVNDB	id:	JVNDB-2018-016320	Trust: 0.8
db:	CNVD	id:	CNVD-2020-31243	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1893	Trust: 0.6

sources: CNVD: CNVD-2020-31243 // JVNDB: JVNDB-2018-016320 // CNNVD: CNNVD-202004-1893 // NVD: CVE-2018-21111

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21111	Trust: 2.0
url:	https://kb.netgear.com/000060440/security-advisory-for-post-authentication-stack-overflow-on-some-routers-and-modem-routers-psv-2018-0115	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21111	Trust: 0.8

sources: CNVD: CNVD-2020-31243 // JVNDB: JVNDB-2018-016320 // CNNVD: CNNVD-202004-1893 // NVD: CVE-2018-21111

SOURCES

db:	CNVD	id:	CNVD-2020-31243
db:	JVNDB	id:	JVNDB-2018-016320
db:	CNNVD	id:	CNNVD-202004-1893
db:	NVD	id:	CVE-2018-21111

LAST UPDATE DATE

2024-11-23T21:51:30.393000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-31243	date:	2020-06-02T00:00:00
db:	JVNDB	id:	JVNDB-2018-016320	date:	2020-05-22T00:00:00
db:	CNNVD	id:	CNNVD-202004-1893	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21111	date:	2024-11-21T04:02:55.650

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-31243	date:	2020-06-02T00:00:00
db:	JVNDB	id:	JVNDB-2018-016320	date:	2020-05-22T00:00:00
db:	CNNVD	id:	CNNVD-202004-1893	date:	2020-04-22T00:00:00
db:	NVD	id:	CVE-2018-21111	date:	2020-04-22T15:15:13.190