Details of VAR-202004-0759

ID

VAR-202004-0759

CVE

CVE-2019-20739

TITLE

NETGEAR R8500 Classic buffer overflow vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2019-015434

DESCRIPTION

NETGEAR R8500 devices before v1.0.2.128 are affected by a buffer overflow by an unauthenticated attacker. NETGEAR R8500 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 R8500 is a wireless router of NETGEAR

Trust: 2.16

sources: NVD: CVE-2019-20739 // JVNDB: JVNDB-2019-015434 // CNVD: CNVD-2020-27431

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-27431

AFFECTED PRODUCTS

vendor:	netgear	model:	r8500	scope:	lt	version:	1.0.2.128	Trust: 1.6
vendor:	netgear	model:	r8500	scope:	eq	version:	1.0.2.128	Trust: 0.8

sources: CNVD: CNVD-2020-27431 // JVNDB: JVNDB-2019-015434 // NVD: CVE-2019-20739

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20739
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2019-20739
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2019-015434
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-27431
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1350
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2019-20739
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2019-015434
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
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-2020-27431
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2019-20739
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2019-20739
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	LOW
exploitabilityScore:	2.8
impactScore:	1.4
version:	3.0
Trust: 1.0
NVD:	JVNDB-2019-015434
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2020-27431 // JVNDB: JVNDB-2019-015434 // CNNVD: CNNVD-202004-1350 // NVD: CVE-2019-20739 // NVD: CVE-2019-20739

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2019-015434 // NVD: CVE-2019-20739

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1350

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1350

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015434

PATCH

title:	Security Advisory for Pre-Authentication Buffer Overflow on R8500, PSV-2017-0636	url:	https://kb.netgear.com/000061179/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-R8500-PSV-2017-0636	Trust: 0.8
title:	Patch for NETGEAR R8500 buffer overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/216955	Trust: 0.6
title:	NETGEAR R8500 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116893	Trust: 0.6

sources: CNVD: CNVD-2020-27431 // JVNDB: JVNDB-2019-015434 // CNNVD: CNNVD-202004-1350

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20739	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015434	Trust: 0.8
db:	CNVD	id:	CNVD-2020-27431	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1350	Trust: 0.6

sources: CNVD: CNVD-2020-27431 // JVNDB: JVNDB-2019-015434 // CNNVD: CNNVD-202004-1350 // NVD: CVE-2019-20739

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20739	Trust: 2.0
url:	https://kb.netgear.com/000061179/security-advisory-for-pre-authentication-buffer-overflow-on-r8500-psv-2017-0636	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20739	Trust: 0.8

sources: CNVD: CNVD-2020-27431 // JVNDB: JVNDB-2019-015434 // CNNVD: CNNVD-202004-1350 // NVD: CVE-2019-20739

SOURCES

db:	CNVD	id:	CNVD-2020-27431
db:	JVNDB	id:	JVNDB-2019-015434
db:	CNNVD	id:	CNNVD-202004-1350
db:	NVD	id:	CVE-2019-20739

LAST UPDATE DATE

2024-11-23T22:16:31.075000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-27431	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015434	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1350	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20739	date:	2024-11-21T04:39:14.040

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-27431	date:	2020-05-09T00:00:00
db:	JVNDB	id:	JVNDB-2019-015434	date:	2020-05-19T00:00:00
db:	CNNVD	id:	CNNVD-202004-1350	date:	2020-04-16T00:00:00
db:	NVD	id:	CVE-2019-20739	date:	2020-04-16T20:15:13.883