CVE-2021-3559

moderate-risk

Published 2021-05-24

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.

Do I need to act?

0.37% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

NETWORK / LOW complexity

Affected Products (2)

Libvirt

Ontap Select Deploy Administration Utility

Affected Vendors

Redhat Netapp

References (4)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1962306

Third Party Advisory https://security.netapp.com/advisory/ntap-20210706-0006/

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1962306

Third Party Advisory https://security.netapp.com/advisory/ntap-20210706-0006/

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 1/34 · Minimal

Exposure 7/34 · Low