CVE-2021-3631

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

02/03/2022

Last modified:

01/04/2024

Description

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs&#39; dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.

Impact

Vector 3.x

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

Base Score: 6.30 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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): None

Base Score 3.x

6.30

Severity 3.x

MEDIUM

Vector 2.0

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

Base Score: 3.30 LOW
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:N

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

Base Score 2.0

3.30

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:redhat:libvirt::::::::		7.5.0 (excluding)
cpe:2.3:a:redhat:openshift_container_platform:4.8:::::::*
cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization:::
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:::::::*

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

CVE-2021-3631

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools