Details of VAR-202104-0617

ID

VAR-202104-0617

CVE

CVE-2021-1794

TITLE

iOS and iPadOS Out-of-bounds read vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-012701

DESCRIPTION

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. iOS and iPadOS Exists in an out-of-bounds read vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) May be in a state. Apple Bluetooth is a component used by Apple in the United States to support Bluetooth in Apple mobile devices. A resource management error vulnerability exists in Apple Bluetooth due to an out-of-bounds read of input. The following products and models are affected: Apple iOS 14.4 and iPadOS 14.4. Apple iOS and iPadOS could allow a remote malicious user to execute arbitrary code on the system, caused by an out-of-bounds read in the Bluetooth component. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system with elevated privileges

Trust: 1.8

sources: NVD: CVE-2021-1794 // JVNDB: JVNDB-2021-012701 // VULHUB: VHN-376454 // VULMON: CVE-2021-1794

AFFECTED PRODUCTS

vendor:	apple	model:	iphone os	scope:	lt	version:	14.4	Trust: 1.0
vendor:	apple	model:	ipad os	scope:	lt	version:	14.4	Trust: 1.0
vendor:	アップル	model:	ios	scope:	-	version:	-	Trust: 0.8
vendor:	アップル	model:	ipados	scope:	eq	version:	14.4	Trust: 0.8

sources: JVNDB: JVNDB-2021-012701 // NVD: CVE-2021-1794

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-1794
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-1794
value:	CRITICAL
Trust: 0.8
CNNVD:	CNNVD-202102-149
value:	CRITICAL
Trust: 0.6
VULHUB:	VHN-376454
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2021-1794
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-376454
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2021-1794
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	CVE-2021-1794
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	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: VULHUB: VHN-376454 // JVNDB: JVNDB-2021-012701 // CNNVD: CNNVD-202102-149 // NVD: CVE-2021-1794

PROBLEMTYPE DATA

problemtype:	CWE-125	Trust: 1.1
problemtype:	Out-of-bounds read (CWE-125) [NVD evaluation ]	Trust: 0.8

sources: VULHUB: VHN-376454 // JVNDB: JVNDB-2021-012701 // NVD: CVE-2021-1794

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202102-149

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202102-149

PATCH

title:	HT212146 Apple Security update	url:	https://support.apple.com/en-us/HT212146	Trust: 0.8
title:	Apple Bluetooth Remediation of resource management error vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=140361	Trust: 0.6

sources: JVNDB: JVNDB-2021-012701 // CNNVD: CNNVD-202102-149

EXTERNAL IDS

db:	NVD	id:	CVE-2021-1794	Trust: 3.4
db:	JVNDB	id:	JVNDB-2021-012701	Trust: 0.8
db:	AUSCERT	id:	ESB-2021.0352	Trust: 0.6
db:	CNNVD	id:	CNNVD-202102-149	Trust: 0.6
db:	VULHUB	id:	VHN-376454	Trust: 0.1
db:	VULMON	id:	CVE-2021-1794	Trust: 0.1

sources: VULHUB: VHN-376454 // VULMON: CVE-2021-1794 // JVNDB: JVNDB-2021-012701 // CNNVD: CNNVD-202102-149 // NVD: CVE-2021-1794

REFERENCES

url:	https://support.apple.com/en-us/ht212146	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-1794	Trust: 1.4
url:	https://www.auscert.org.au/bulletins/esb-2021.0352/	Trust: 0.6
url:	https://exchange.xforce.ibmcloud.com/vulnerabilities/196028	Trust: 0.1

sources: VULHUB: VHN-376454 // VULMON: CVE-2021-1794 // JVNDB: JVNDB-2021-012701 // CNNVD: CNNVD-202102-149 // NVD: CVE-2021-1794

SOURCES

db:	VULHUB	id:	VHN-376454
db:	VULMON	id:	CVE-2021-1794
db:	JVNDB	id:	JVNDB-2021-012701
db:	CNNVD	id:	CNNVD-202102-149
db:	NVD	id:	CVE-2021-1794

LAST UPDATE DATE

2024-08-14T12:43:06.170000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-376454	date:	2021-04-07T00:00:00
db:	VULMON	id:	CVE-2021-1794	date:	2021-04-07T00:00:00
db:	JVNDB	id:	JVNDB-2021-012701	date:	2022-09-06T03:01:00
db:	CNNVD	id:	CNNVD-202102-149	date:	2021-04-08T00:00:00
db:	NVD	id:	CVE-2021-1794	date:	2021-04-07T18:38:04.893

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-376454	date:	2021-04-02T00:00:00
db:	VULMON	id:	CVE-2021-1794	date:	2021-04-02T00:00:00
db:	JVNDB	id:	JVNDB-2021-012701	date:	2022-09-06T00:00:00
db:	CNNVD	id:	CNNVD-202102-149	date:	2021-02-02T00:00:00
db:	NVD	id:	CVE-2021-1794	date:	2021-04-02T19:15:19.210