Details of VAR-202004-0760

ID

VAR-202004-0760

CVE

CVE-2019-20740

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015433

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130. 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 DGN2200 is a wireless router of NETGEAR. 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-2019-20740 // JVNDB: JVNDB-2019-015433 // CNVD: CNVD-2020-27294

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-27294

AFFECTED PRODUCTS

vendor:	netgear	model:	r7300	scope:	lt	version:	1.0.0.70	Trust: 1.6
vendor:	netgear	model:	r8300	scope:	lt	version:	1.0.2.130	Trust: 1.6
vendor:	netgear	model:	r8500	scope:	lt	version:	1.0.2.130	Trust: 1.6
vendor:	netgear	model:	dgn2200	scope:	lt	version:	1.0.0.110	Trust: 1.0
vendor:	netgear	model:	dgnd2200b	scope:	lt	version:	1.0.0.109	Trust: 1.0
vendor:	netgear	model:	dgn2200	scope:	eq	version:	1.0.0.110	Trust: 0.8
vendor:	netgear	model:	dgnd2200b	scope:	eq	version:	1.0.0.109	Trust: 0.8
vendor:	netgear	model:	r7300	scope:	eq	version:	1.0.0.70	Trust: 0.8
vendor:	netgear	model:	r8300	scope:	eq	version:	1.0.2.130	Trust: 0.8
vendor:	netgear	model:	r8500	scope:	eq	version:	1.0.2.130	Trust: 0.8
vendor:	netgear	model:	dgn2200v4	scope:	lt	version:	1.0.0.110	Trust: 0.6
vendor:	netgear	model:	dgnd2200bv4	scope:	lt	version:	1.0.0.109	Trust: 0.6

sources: CNVD: CNVD-2020-27294 // JVNDB: JVNDB-2019-015433 // NVD: CVE-2019-20740

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20740
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2019-20740
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2019-015433
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-27294
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1351
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2019-20740
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-2019-015433
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-2020-27294
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-2019-20740
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-2019-20740
baseSeverity:	MEDIUM
baseScore:	6.3
vectorString:	CVSS:3.0/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	HIGH
privilegesRequired:	HIGH
userInteraction:	REQUIRED
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.4
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2019-015433
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-2020-27294 // JVNDB: JVNDB-2019-015433 // CNNVD: CNNVD-202004-1351 // NVD: CVE-2019-20740 // NVD: CVE-2019-20740

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015433 // NVD: CVE-2019-20740

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1351

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1351

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015433

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers and Gateways, PSV-2018-0258	url:	https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-27294)	url:	https://www.cnvd.org.cn/patchInfo/show/216947	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116894	Trust: 0.6

sources: CNVD: CNVD-2020-27294 // JVNDB: JVNDB-2019-015433 // CNNVD: CNNVD-202004-1351

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20740	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015433	Trust: 0.8
db:	CNVD	id:	CNVD-2020-27294	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1351	Trust: 0.6

sources: CNVD: CNVD-2020-27294 // JVNDB: JVNDB-2019-015433 // CNNVD: CNNVD-202004-1351 // NVD: CVE-2019-20740

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20740	Trust: 2.0
url:	https://kb.netgear.com/000060976/security-advisory-for-post-authentication-stack-overflow-on-some-routers-and-gateways-psv-2018-0258	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20740	Trust: 0.8

sources: CNVD: CNVD-2020-27294 // JVNDB: JVNDB-2019-015433 // CNNVD: CNNVD-202004-1351 // NVD: CVE-2019-20740

SOURCES

db:	CNVD	id:	CNVD-2020-27294
db:	JVNDB	id:	JVNDB-2019-015433
db:	CNNVD	id:	CNNVD-202004-1351
db:	NVD	id:	CVE-2019-20740

LAST UPDATE DATE

2024-11-23T23:04:26.096000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-27294	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015433	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1351	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20740	date:	2024-11-21T04:39:14.203

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-27294	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015433	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1351	date:	2020-04-16T00:00:00
db:	NVD	id:	CVE-2019-20740	date:	2020-04-16T20:15:13.947