# libvirt-daemon 4.0.0-1ubuntu8.21: libvirt-daemon 4.0.0-1ubuntu8.21 for Ubuntu 18.04.6 LTS (bionic)

libvirt-daemon 4.0.0-1ubuntu8.21, released March 25, 2022, fixes 5 CVEs in libvirt-daemon. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-libvirt-daemon-4.0.0-1ubuntu8.21
- Platform: Linux
- Released: Mar 25, 2022
- Priority: High (Closes CVE-2021-3975, high severity)
- CVEs: 5, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libvirt-daemon](https://patchblox.com/security/data/product/linux/libvirt-daemon.md) | Ubuntu 18.04.6 LTS (bionic) | 4.0.0-1ubuntu8.21 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-3975](https://patchblox.com/security/data/cve/CVE-2021-3975.md) | High | libvirt: libvirt: segmentation fault during VM shutdown can lead to vdsm hang | 7.8 | 0.0174 |  |
| [CVE-2022-0897](https://patchblox.com/security/data/cve/CVE-2022-0897.md) | Routine | hivex: ELSA-2022-9460: kvm_utils security update (IMPORTANT) | 5.5 | 0.0105 |  |
| [CVE-2020-25637](https://patchblox.com/security/data/cve/CVE-2020-25637.md) | Routine | hivex: ELSA-2021-1762: virt:ol and virt-devel:rhel security, bug fix, and enhancement update (MODERATE) | 6.7 | 0.0053 |  |
| [CVE-2021-3631](https://patchblox.com/security/data/cve/CVE-2021-3631.md) | Routine | libnss-libvirt: A flaw was found in libvirt while it generates SELinux MCS category pairsfor VMs' dynamic labels | 6.3 | 0.0049 |  |
| [CVE-2021-4147](https://patchblox.com/security/data/cve/CVE-2021-4147.md) | Routine | libvirt: A flaw was found in the libvirt libxl driver | 6.5 | 0.0024 |  |

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