DEBIAN-CVE-2022-0897

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2022-0897
Downstream
DLA-3778-1
Published: 25 Mar 2022, 19:15
Last modified:28 Apr 2026, 20:23

Vulnerability Summary

Overall Risk (default)
low
17/100
CVSS Score
4.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Mar 2022, 19:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:23
Last Modified
Vulnerability information updated

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).

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected Systems

  • debian•libvirt

    < 7.0.0-3+deb11u3 | < 8.2.0-1 | < 8.2.0-1 | < 8.2.0-1

References (1)