CVE-2021-4147
Published: 25 March 2022
A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libvirt Launchpad, Ubuntu, Debian |
bionic |
Released
(4.0.0-1ubuntu8.21)
|
| focal |
Released
(6.0.0-0ubuntu8.16)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Released
(7.6.0-0ubuntu1.2)
|
|
| jammy |
Not vulnerable
(8.0.0-1ubuntu7)
|
|
| kinetic |
Not vulnerable
(8.0.0-1ubuntu7)
|
|
| lunar |
Not vulnerable
(8.0.0-1ubuntu7)
|
|
| mantic |
Not vulnerable
(8.0.0-1ubuntu7)
|
|
| trusty |
Needs triage
|
|
| upstream |
Released
(7.10.0-2)
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://gitlab.com/libvirt/libvirt/-/commit/23b51d7b8ec885e97a9277cf0a6c2833db4636e8 upstream: https://gitlab.com/libvirt/libvirt/-/commit/a4e6fba069c0809b8b5dde5e9db62d2efd91b4a0 upstream: https://gitlab.com/libvirt/libvirt/-/commit/e4f7589a3ec285489618ca04c8c0230cc31f3d99 upstream: https://gitlab.com/libvirt/libvirt/-/commit/b9a5faea49b7412e26d7389af4c32fc2b3ee80e5 upstream: https://gitlab.com/libvirt/libvirt/-/commit/5c5df5310f72be4878a71ace47074c54e0d1a27d upstream: https://gitlab.com/libvirt/libvirt/-/commit/a7a03324d86e111f81687b5315b8f296dde84340 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |