Details of VAR-202110-0392

ID

VAR-202110-0392

CVE

CVE-2021-31374

TITLE

Juniper Networks Junos OS and Junos OS Evolved Buffer error vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202110-944

DESCRIPTION

On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: 20.3 versions prior to 20.3R2-EVO

Trust: 1.08

sources: NVD: CVE-2021-31374 // VULHUB: VHN-391122 // VULMON: CVE-2021-31374

AFFECTED PRODUCTS

vendor:	juniper	model:	junos	scope:	eq	version:	17.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	17.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.2	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.2	Trust: 1.0
vendor:	juniper	model:	junos os evolved	scope:	eq	version:	20.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.2	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.3	Trust: 1.0

sources: NVD: CVE-2021-31374

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-31374
value:	MEDIUM
Trust: 1.0
sirt@juniper.net:	CVE-2021-31374
value:	HIGH
Trust: 1.0
CNNVD:	CNNVD-202110-944
value:	HIGH
Trust: 0.6
VULHUB:	VHN-391122
value:	MEDIUM
Trust: 0.1
VULMON:	CVE-2021-31374
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-31374
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
VULHUB:	VHN-391122
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

sirt@juniper.net:	CVE-2021-31374
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0

sources: VULHUB: VHN-391122 // VULMON: CVE-2021-31374 // CNNVD: CNNVD-202110-944 // NVD: CVE-2021-31374 // NVD: CVE-2021-31374

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0

sources: NVD: CVE-2021-31374

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202110-944

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202110-944

PATCH

title:

Juniper Networks Junos OS and Junos OS Evolved Buffer error vulnerability fix

url:

http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=167325

Trust: 0.6

sources: CNNVD: CNNVD-202110-944

EXTERNAL IDS

db:	NVD	id:	CVE-2021-31374	Trust: 1.8
db:	JUNIPER	id:	JSA11239	Trust: 1.8
db:	CNNVD	id:	CNNVD-202110-944	Trust: 0.6
db:	VULHUB	id:	VHN-391122	Trust: 0.1
db:	VULMON	id:	CVE-2021-31374	Trust: 0.1

sources: VULHUB: VHN-391122 // VULMON: CVE-2021-31374 // CNNVD: CNNVD-202110-944 // NVD: CVE-2021-31374

REFERENCES

url:	https://kb.juniper.net/jsa11239	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2021-31374	Trust: 0.6
url:	https://vigilance.fr/vulnerability/junos-os-multiple-vulnerabilities-36656	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULHUB: VHN-391122 // VULMON: CVE-2021-31374 // CNNVD: CNNVD-202110-944 // NVD: CVE-2021-31374

SOURCES

db:	VULHUB	id:	VHN-391122
db:	VULMON	id:	CVE-2021-31374
db:	CNNVD	id:	CNNVD-202110-944
db:	NVD	id:	CVE-2021-31374

LAST UPDATE DATE

2024-08-14T14:44:15.955000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-391122	date:	2021-10-25T00:00:00
db:	VULMON	id:	CVE-2021-31374	date:	2021-10-25T00:00:00
db:	CNNVD	id:	CNNVD-202110-944	date:	2021-10-29T00:00:00
db:	NVD	id:	CVE-2021-31374	date:	2021-10-25T15:49:43.313

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-391122	date:	2021-10-19T00:00:00
db:	VULMON	id:	CVE-2021-31374	date:	2021-10-19T00:00:00
db:	CNNVD	id:	CNNVD-202110-944	date:	2021-10-13T00:00:00
db:	NVD	id:	CVE-2021-31374	date:	2021-10-19T19:15:10.560