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NTAP-20210716-0005 — CVE-2021-3516 Libxml2 Vulnerability in NetApp Products

Published 2021-07-16 · Updated 2024-03-07 · Status: Final · Exploitation: Public · Severity: HIGH 7.8 · ONTAP affected: Yes

Official advisory: NTAP-20210716-0005 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Cloud Backup / AltaVault / SteelStore · SolidFire / NetApp HCI · Other NetApp products · ONTAP | ONTAP-relevant | highest CVSS: 7.8

CVEs in this advisory

CVE-2021-3516 — HIGH · CVSS 7.8 · site index

What the CVE records say

CVE-2021-3516 — There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS).

Affected products

NetApp Cloud Backup (formerly AltaVault)
NetApp HCI Baseboard Management Controller (BMC) - H300S/H500S/H700S/H410S
NetApp HCI Baseboard Management Controller (BMC) - H410C
NetApp SMI-S Provider
ONTAP 9 (formerly Clustered Data ONTAP)
ONTAP Antivirus Connector
ONTAP Select Deploy administration utility

Official fixes

ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP 9 (formerly Clustered Data ONTAP) — vendor fix ↗
ONTAP Antivirus Connector — vendor fix ↗
NetApp SMI-S Provider — vendor fix ↗
ONTAP Select Deploy administration utility — vendor fix ↗

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.