CVE-2021-26708

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

05/02/2021

Last modified:

09/11/2023

Description

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

Impact

Vector 3.x

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

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.00

Severity 3.x

HIGH

Vector 2.0

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

Base Score: 6.90 MEDIUM
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

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

Base Score 2.0

6.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.13 (excluding)
cpe:2.3:a:netapp:aff_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:fas_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:::::::*
cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:::::::*
cpe:2.3:o:netapp:baseboard_management_controller_500f_firmware::::::::		15.3 (excluding)
cpe:2.3:h:netapp:500f:-:::::::*
cpe:2.3:o:netapp:baseboard_management_controller_a250_firmware::::::::		15.3 (excluding)
cpe:2.3:h:netapp:a250:-:::::::*
cpe:2.3:o:netapp:hci_h410c_firmware:-:::::::*
cpe:2.3:h:netapp:hci_h410c:-:::::::*

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

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.13 (excluding)
cpe:2.3:a:netapp:aff_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:fas_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:::::::*
cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:::::::*
cpe:2.3:o:netapp:baseboard_management_controller_500f_firmware::::::::		15.3 (excluding)
cpe:2.3:h:netapp:500f:-:::::::*
cpe:2.3:o:netapp:baseboard_management_controller_a250_firmware::::::::		15.3 (excluding)
cpe:2.3:h:netapp:a250:-:::::::*
cpe:2.3:o:netapp:hci_h410c_firmware:-:::::::*
cpe:2.3:h:netapp:hci_h410c:-:::::::*

CVE-2021-26708

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools