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NTAP-20220513-0004 — CVE-2021-4147 Libvirt Vulnerability in NetApp Products
Published 2022-05-13 · Updated 2024-04-25 · Status: Final · Exploitation: Public · Severity: MEDIUM 6.5 · ONTAP affected: Yes
Official advisory: NTAP-20220513-0004 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.
Product family: ONTAP | ONTAP-relevant | highest CVSS: 6.5
CVEs in this advisory
- CVE-2021-4147 — MEDIUM · CVSS 6.5 · site index
What the CVE records say
CVE-2021-4147 — A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.
Impact
Successful exploitation of this vulnerability could lead to Denial of Service (DoS).
Affected products
- ONTAP Select Deploy administration utility
Official fixes
- ONTAP Select Deploy administration utility — vendor fix ↗
References
What to do
- Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
- If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
- If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
- Harden in parallel: security hardening baseline and ransomware protection on ONTAP.
Related reading
- Common ONTAP problems (FAQ) — plain-language symptoms and fixes
- ONTAP security hardening — baseline lockdown guidance
- Ransomware protection on ONTAP — SnapLock, SnapMirror vaulting, Anomaly Detection
- ONTAP error messages index — EMS/WAFL/NFS/SnapMirror messages
- Every NetApp advisory published in 2022