CVE-2022-0897

Aliases:DEBIAN-CVE-2022-0897UBUNTU-CVE-2022-0897
Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 25 Mar 2022, 00:00
Last modified:02 Aug 2024, 23:47

Vulnerability Summary

Overall Risk (default)
low
17/100
CVSS Score
4.3 MEDIUM
v3.1 (nvd)
EPSS Score
1.05% LOW
1% probability +1.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Mar 2022, 00:00
Published
Vulnerability first disclosed
02 Aug 2024, 23:47
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
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.05%• Percentile: 63%

Techniques & Countermeasures

  • CWE-667•Improper Locking

    The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

Affected Systems

  • debian•libvirt

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

  • ubuntu•libvirt

    < 4.0.0-1ubuntu8.21 | < 6.0.0-0ubuntu8.16 | < 8.0.0-1ubuntu7.5

  • netapp•ontap_select_deploy_administration_utility

    na

  • redhat•libvirt

    ≤ 1.1.1

References (8)