CVE-2021-3559

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.37%
Vendor Advisory redhat.com
Affected: n/a libvirt
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1962306 patch vendor advisory issue tracking
https://security.netapp.com/advisory/ntap-20210706-0006/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3559?
CVE-2021-3559 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3559?
To fix CVE-2021-3559, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3559 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3559 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3559?
CVE-2021-3559 affects n/a libvirt.
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