CVE-2021-28038

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

05/03/2021

Last modified:

25/03/2024

Description

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vector 2.0

AV:L/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0

4.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.39 (including)	4.4.260 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5.0 (including)	4.9.260 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10.0 (including)	4.14.224 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15.0 (including)	4.19.179 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20.0 (including)	5.4.103 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.10.0 (including)	5.10.21 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11.0 (including)	5.11.4 (excluding)
cpe:2.3:o:linux:linux_kernel:5.12:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.12:rc2::::::
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-28038

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools