CVE-2021-3559
Published: 24 May 2021
A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in 6.10.0-rc1, fixed in 7.0.0-rc1 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libvirt Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.0.0-1ubuntu8.19)
|
| focal |
Not vulnerable
(6.0.0-0ubuntu8.9)
|
|
| groovy |
Not vulnerable
(6.6.0-1ubuntu3.5)
|
|
| hirsute |
Not vulnerable
(7.0.0-2ubuntu2)
|
|
| impish |
Not vulnerable
(7.0.0-2ubuntu2)
|
|
| jammy |
Not vulnerable
(7.0.0-2ubuntu2)
|
|
| trusty |
Not vulnerable
|
|
| upstream |
Not vulnerable
(debian: Vulnerable code never in a released version)
|
|
| xenial |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |