CVE-2021-28039

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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 2.1 LOW

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://xenbits.xen.org/xsa/advisory-369.html	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/03/05/2	Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210409-0001/	Third Party Advisory

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Configurations

Configuration 1 (hide)

Configuration 2 (hide)

OR	cpe:2.3:a:netapp:cloud_backup:-:::::::*
	cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:::::::*

Information

Published : 2021-03-05 10:15

Updated : 2022-07-12 10:42

NVD link : CVE-2021-28039

Mitre link : CVE-2021-28039

JSON object : View

CWE

CWE-131

Incorrect Calculation of Buffer Size

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Products Affected

netapp

cloud_backup
solidfire_baseboard_management_controller_firmware

xen

xen

linux

linux_kernel

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