Lucene search

[email protected]NVD:CVE-2021-28039

HistoryMar 05, 2021 - 6:15 p.m.

CVE-2021-28039

2021-03-0518:15:13

CWE-131

[email protected]

web.nvd.nist.gov

linux kernel

vulnerability

x86 pv guest os

dom0

driver domain

i/o activity

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

Percentile

5.1%

JSON

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.

Affected configurations

Nvd

Node

linuxlinux_kernelRange5.9.0–5.11.3x86

AND

xenxenMatch-

Node

netappcloud_backupMatch-

netappsolidfire_baseboard_management_controller_firmwareMatch-

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:x86:*
xenxen-cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
netappcloud_backup-cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netappsolidfire_baseboard_management_controller_firmware-cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel:::::::x86:*
xen	xen	-	cpe:2.3:o:xen:xen:-:::::::*
netapp	cloud_backup	-	cpe:2.3:a:netapp:cloud_backup:-:::::::*
netapp	solidfire_baseboard_management_controller_firmware	-	cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:::::::*