CVE Vulnerability

CVE-2021-3631

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' 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.

3.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://access.redhat.com/errata/RHSA-2021:3631 Vendor Advisory
https://gitlab.com/libvirt/libvirt/-/commit/15073504dbb624d3f6c911e85557019d3620fdb2 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1977726 Issue Tracking Vendor Advisory
https://gitlab.com/libvirt/libvirt/-/issues/153 Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20220331-0010/ Third Party Advisory
https://security.gentoo.org/glsa/202210-06 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.8:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
Information

Published : 2022-03-02 11:15

Updated : 2022-10-28 08:09

NVD link : CVE-2021-3631

Mitre link : CVE-2021-3631

Products Affected
No products.
CWE
CWE-732