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NTAP-20221104-0001 — CVE-2021-3999 GNU C Library (glibc) Vulnerability in NetApp Products

Published 2022-11-04 · Updated 2024-11-14 · Status: Final · Exploitation: Public · Severity: HIGH 7.8 · ONTAP affected: Yes

Official advisory: NTAP-20221104-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: E-Series / SANtricity · SolidFire / NetApp HCI · Other NetApp products · ONTAP | ONTAP-relevant | highest CVSS: 7.8

CVEs in this advisory

CVE-2021-3999 — HIGH · CVSS 7.8 · site index

What the CVE records say

CVE-2021-3999 — A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

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 E-Series Performance Analyzer
NetApp HCI Baseboard Management Controller (BMC) - H300S/H500S/H700S/H410S
NetApp HCI Baseboard Management Controller (BMC) - H410C
NetApp NFS Plug-in for VMware VAAI
ONTAP Select Deploy administration utility

Official fixes

NetApp NFS Plug-in for VMware VAAI — 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.