Read the docs
TI-2022-00801 Aliases CVE-2022-0897GHSA-4r2g-j5rc-7wqf

A flaw was found in the libvirt nwfilter driver.

Priority LOW 22CWE-667Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 4 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01049 64th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—libvirtlibvirt 8.0.0-8—No fix listedCNA
  • libvirt Vendor— Affected libvirt 8.0.0-8 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*up to 1.1.1VulnerableRed Hat
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:* Versions up to 1.1.1 Vulnerable ·Red Hat
  • cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 2 advisories

  • RHSA-2022:8003 Released 2022-11-15 · Red Hat rating Low
    libvirt security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 9) libvirt-devel-8.5.0-7.el9_1, libvirt-docs-8.5.0-7.el9_1, libvirt-lock-sanlock-8.5.0-7.el9_1
    • Red Hat Enterprise Linux AppStream (v. 9) libvirt-8.5.0-7.el9_1, libvirt-client-8.5.0-7.el9_1, libvirt-daemon-8.5.0-7.el9_1 +19
  • RHSA-2022:7472 Released 2022-11-08 · Red Hat rating Low
    virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) SLOF-20210217-1.module+el8.7.0+16689+53d59bc2.src::virt-devel:rhel, hivex-1.3.18-23.module+el8.7.0+16689+53d59bc2.i686::virt-devel:rhel, hivex-devel-1.3.18-23.module+el8.7.0+16689+53d59bc2.i686::virt-devel:rhel +47
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20210217-1.module+el8.7.0+16689+53d59bc2.noarch::virt:rhel, SLOF-20210217-1.module+el8.7.0+16689+53d59bc2.src::virt:rhel, hivex-1.3.18-23.module+el8.7.0+16689+53d59bc2.aarch64::virt:rhel +47

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2022:7472
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2022:8003
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:7472
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:8003

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-0897
  2. 2026-10-03 Alias added: GHSA-4r2g-j5rc-7wqf

References

Advisory 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences