HOMEVULNERABILITIESCVE-2022-0897
MEDIUM

CVE-2022-0897

CWE-667Published: March 25, 2022· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official 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).

NVD Source

Technical Analysis

CVE-2022-0897 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected Vendors & Products

netapp1 product(s)
ontap select deploy administration utility
Red Hat1 product(s)
libvirt
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://security.gentoo.org/glsa/202210-06
ADVISORYhttps://security.gentoo.org/glsa/202210-06

All References (6)

→
https://bugzilla.redhat.com/show_bug.cgi?id=2063883Issue Tracking
→
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
→
https://security.gentoo.org/glsa/202210-06Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2063883Issue Tracking
→
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
→
https://security.gentoo.org/glsa/202210-06Third Party Advisory

Quick Facts

CVE IDCVE-2022-0897
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-667
CISA KEVNo
Affected2 vendor(s)
PublishedMar 25, 2022

Related CVEs (CWE-667)

CVE-2021-22530
9.9
CVE-2020-12658
9.8
CVE-2019-5886
9.8
CVE-2020-15674
8.8
CVE-2024-58087
8.1
CVE-2023-21000
7.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-0897 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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