Details of VAR-202103-1030

ID

VAR-202103-1030

CVE

CVE-2021-28039

TITLE

Xen Used in Linux Kernel Resource Depletion Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-003868

DESCRIPTION

An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG. Linux kernel 5.9.x through 5.11.3 contains a security vulnerability that could be exploited by an attacker to cause the driver to crash

Trust: 1.71

sources: NVD: CVE-2021-28039 // JVNDB: JVNDB-2021-003868 // VULHUB: VHN-387390

AFFECTED PRODUCTS

vendor:	linux	model:	kernel	scope:	lte	version:	5.11.3	Trust: 1.0
vendor:	netapp	model:	solidfire baseboard management controller	scope:	eq	version:	-	Trust: 1.0
vendor:	linux	model:	kernel	scope:	gte	version:	5.9.0	Trust: 1.0
vendor:	netapp	model:	cloud backup	scope:	eq	version:	-	Trust: 1.0
vendor:	xen	model:	xen	scope:	eq	version:	-	Trust: 1.0
vendor:	linux	model:	kernel	scope:	-	version:	-	Trust: 0.8
vendor:	xen プロジェクト	model:	xen	scope:	eq	version:	project	Trust: 0.8
vendor:	xen プロジェクト	model:	xen	scope:	eq	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-003868 // NVD: CVE-2021-28039

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-28039
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2021-28039
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-202103-475
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-387390
value:	LOW
Trust: 0.1

nvd@nist.gov:	CVE-2021-28039
severity:	LOW
baseScore:	2.1
vectorString:	AV:L/AC:L/AU:N/C:N/I:N/A:P
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	3.9
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-387390
severity:	LOW
baseScore:	2.1
vectorString:	AV:L/AC:L/AU:N/C:N/I:N/A:P
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	3.9
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2021-28039
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.0
impactScore:	4.0
version:	3.1
Trust: 1.0
NVD:	CVE-2021-28039
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULHUB: VHN-387390 // JVNDB: JVNDB-2021-003868 // CNNVD: CNNVD-202103-475 // NVD: CVE-2021-28039

PROBLEMTYPE DATA

problemtype:	CWE-131	Trust: 1.1
problemtype:	Resource exhaustion (CWE-400) [NVD Evaluation ]	Trust: 0.8

sources: VULHUB: VHN-387390 // JVNDB: JVNDB-2021-003868 // NVD: CVE-2021-28039

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202103-475

TYPE

resource management error

Trust: 0.6

sources: CNNVD: CNNVD-202103-475

PATCH

title:

Linux Kernel Archives Xen project Xen project

url:

http://www.kernel.org

Trust: 0.8

sources: JVNDB: JVNDB-2021-003868

EXTERNAL IDS

db:	NVD	id:	CVE-2021-28039	Trust: 2.5
db:	OPENWALL	id:	OSS-SECURITY/2021/03/05/2	Trust: 2.5
db:	JVNDB	id:	JVNDB-2021-003868	Trust: 0.8
db:	CNNVD	id:	CNNVD-202103-475	Trust: 0.6
db:	VULHUB	id:	VHN-387390	Trust: 0.1

sources: VULHUB: VHN-387390 // JVNDB: JVNDB-2021-003868 // CNNVD: CNNVD-202103-475 // NVD: CVE-2021-28039

REFERENCES

url:	http://www.openwall.com/lists/oss-security/2021/03/05/2	Trust: 2.5
url:	https://security.netapp.com/advisory/ntap-20210409-0001/	Trust: 1.7
url:	http://xenbits.xen.org/xsa/advisory-369.html	Trust: 1.7
url:	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2021-28039	Trust: 0.8

sources: VULHUB: VHN-387390 // JVNDB: JVNDB-2021-003868 // CNNVD: CNNVD-202103-475 // NVD: CVE-2021-28039

SOURCES

db:	VULHUB	id:	VHN-387390
db:	JVNDB	id:	JVNDB-2021-003868
db:	CNNVD	id:	CNNVD-202103-475
db:	NVD	id:	CVE-2021-28039

LAST UPDATE DATE

2024-11-23T22:33:06.598000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-387390	date:	2022-07-12T00:00:00
db:	JVNDB	id:	JVNDB-2021-003868	date:	2021-11-09T05:05:00
db:	CNNVD	id:	CNNVD-202103-475	date:	2022-07-14T00:00:00
db:	NVD	id:	CVE-2021-28039	date:	2024-11-21T05:59:01.627

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-387390	date:	2021-03-05T00:00:00
db:	JVNDB	id:	JVNDB-2021-003868	date:	2021-11-09T00:00:00
db:	CNNVD	id:	CNNVD-202103-475	date:	2021-03-05T00:00:00
db:	NVD	id:	CVE-2021-28039	date:	2021-03-05T18:15:13.190