Details of VAR-202004-0745

ID

VAR-202004-0745

CVE

CVE-2019-20765

TITLE

NETGEAR R7800 Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015300

DESCRIPTION

NETGEAR R7800 devices before 1.0.2.52 are affected by a stack-based buffer overflow by an authenticated user. NETGEAR R7800 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 is a wireless router of NETGEAR. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow

Trust: 2.16

sources: NVD: CVE-2019-20765 // JVNDB: JVNDB-2019-015300 // CNVD: CNVD-2020-23427

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-23427

AFFECTED PRODUCTS

vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.52	Trust: 0.8

sources: CNVD: CNVD-2020-23427 // JVNDB: JVNDB-2019-015300 // NVD: CVE-2019-20765

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20765
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2019-20765
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2019-015300
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-23427
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1376
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2019-20765
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-2019-015300
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-2020-23427
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-2019-20765
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-2019-20765
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-2019-015300
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-2020-23427 // JVNDB: JVNDB-2019-015300 // CNNVD: CNNVD-202004-1376 // NVD: CVE-2019-20765 // NVD: CVE-2019-20765

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015300 // NVD: CVE-2019-20765

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1376

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1376

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015300

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on R7800, PSV-2018-0136	url:	https://kb.netgear.com/000060634/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-R7800-PSV-2018-0136	Trust: 0.8
title:	Patch for NETGEAR R7800 buffer overflow vulnerability (CNVD-2020-23427)	url:	https://www.cnvd.org.cn/patchInfo/show/214443	Trust: 0.6
title:	NETGEAR R7800 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=115188	Trust: 0.6

sources: CNVD: CNVD-2020-23427 // JVNDB: JVNDB-2019-015300 // CNNVD: CNNVD-202004-1376

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20765	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015300	Trust: 0.8
db:	CNVD	id:	CNVD-2020-23427	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1376	Trust: 0.6

sources: CNVD: CNVD-2020-23427 // JVNDB: JVNDB-2019-015300 // CNNVD: CNNVD-202004-1376 // NVD: CVE-2019-20765

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20765	Trust: 2.0
url:	https://kb.netgear.com/000060634/security-advisory-for-post-authentication-stack-overflow-on-r7800-psv-2018-0136	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20765	Trust: 0.8

sources: CNVD: CNVD-2020-23427 // JVNDB: JVNDB-2019-015300 // CNNVD: CNNVD-202004-1376 // NVD: CVE-2019-20765

SOURCES

db:	CNVD	id:	CNVD-2020-23427
db:	JVNDB	id:	JVNDB-2019-015300
db:	CNNVD	id:	CNNVD-202004-1376
db:	NVD	id:	CVE-2019-20765

LAST UPDATE DATE

2024-11-23T22:41:07.624000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-23427	date:	2020-04-18T00:00:00
db:	JVNDB	id:	JVNDB-2019-015300	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1376	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20765	date:	2024-11-21T04:39:18.470

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-23427	date:	2020-04-17T00:00:00
db:	JVNDB	id:	JVNDB-2019-015300	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1376	date:	2020-04-16T00:00:00
db:	NVD	id:	CVE-2019-20765	date:	2020-04-16T22:15:13.573