CVE-2020-27673

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

22/10/2020

Last modified:

22/08/2023

Description

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.

Impact

Vector 3.x

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

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

5.50

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::::::::	2.6.12 (including)	4.4.244 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5.0 (including)	4.9.244 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10.0 (including)	4.14.207 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15.0 (including)	4.19.155 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20.0 (including)	5.4.75 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5.0 (including)	5.9.5 (excluding)
cpe:2.3:o:linux:linux_kernel:5.10:rc1::::::
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:15.2:::::::*
cpe:2.3:o:xen:xen::::::::		4.14.0 (including)

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

CVE-2020-27673

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools