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NTAP-20230324-0005 — CVE-2023-0361 GNU TLS Vulnerability in NetApp Products

Published 2023-03-24 · Updated 2025-03-11 · Status: Final · Exploitation: Public · Severity: HIGH 7.4 · ONTAP affected: Yes

Official advisory: NTAP-20230324-0005 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · Other NetApp products · SolidFire / NetApp HCI · ONTAP  |  ONTAP-relevant  |  highest CVSS: 7.4

CVEs in this advisory

What the CVE records say

CVE-2023-0361 — A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information.

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