vulnerability
Ubuntu: USN-5399-1 (CVE-2021-3631): libvirt vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:L/AC:M/Au:N/C:P/I:P/A:N) | Jul 27, 2021 | May 3, 2022 | Aug 18, 2025 |
Severity
3
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:N)
Published
Jul 27, 2021
Added
May 3, 2022
Modified
Aug 18, 2025
Description
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.
Solutions
ubuntu-upgrade-libvirt-daemonubuntu-upgrade-libvirt-daemon-systemubuntu-upgrade-libvirt0
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.