Description
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
Published: 2022-03-25
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3778-1 libvirt security update
Ubuntu USN Ubuntu USN USN-5399-1 libvirt vulnerabilities
Ubuntu USN Ubuntu USN USN-6126-1 libvirt vulnerabilities
History

Thu, 26 Feb 2026 02:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Netapp Ontap Select Deploy Administration Utility
Redhat Enterprise Linux Libvirt
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-02T23:47:42.099Z

Reserved: 2022-03-09T00:00:00.000Z

Link: CVE-2022-0897

cve-icon Vulnrichment

Updated: 2024-08-02T23:47:42.099Z

cve-icon NVD

Status : Modified

Published: 2022-03-25T19:15:10.340

Modified: 2024-11-21T06:39:37.387

Link: CVE-2022-0897

cve-icon Redhat

Severity : Low

Publid Date: 2022-03-17T00:00:00Z

Links: CVE-2022-0897 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses