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NTAP-20211218-0001 — CVE-2021-45105 Apache Log4j Vulnerability in NetApp Products

Published 2021-12-18 · Updated 2022-06-21 · Status: Final · Exploitation: Public · Severity: MEDIUM 5.9 · ONTAP affected: Yes

Official advisory: NTAP-20211218-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: NetApp Console / BlueXP · SolidFire / NetApp HCI · ONTAP  |  ONTAP-relevant  |  highest CVSS: 5.9

CVEs in this advisory

What the CVE records say

CVE-2021-45105 — Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS). <br><br> NetApp SolidFire, Enterprise SDS & HCI Storage Node (Element Software) is affected only when the “Virtual Volumes (vVols)” feature is enabled on the cluster.

Affected products

Official fixes

References

What to do

  1. 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.
  2. If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
  3. If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
  4. Harden in parallel: security hardening baseline and ransomware protection on ONTAP.

Related reading

Browse all ONTAP CVEs → · Security hub