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NTAP-20210226-0003 — CVE-2021-3177 Python Vulnerability in NetApp Products

Published 2021-02-26 · Updated 2024-03-07 · Status: Final · Exploitation: Public · Severity: CRITICAL 9.8 · ONTAP affected: Yes

Official advisory: NTAP-20210226-0003 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · ONTAP | ONTAP-relevant | highest CVSS: 9.8

CVEs in this advisory

CVE-2021-3177 — CRITICAL · CVSS 9.8 · site index

What the CVE records say

CVE-2021-3177 — Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.

Impact

Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). <br><br> ONTAP 9 (formerly Clustered Data ONTAP):<br> Affected versions are 9.8 and 9.9.1.

Affected products

Active IQ Unified Manager for Microsoft Windows
Active IQ Unified Manager for VMware vSphere
ONTAP 9 (formerly Clustered Data ONTAP)
ONTAP Select Deploy administration utility

Official fixes

Active IQ Unified Manager for VMware vSphere — vendor fix ↗
Active IQ Unified Manager for Microsoft Windows — vendor fix ↗
ONTAP Select Deploy administration utility — 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 ↗

References

https://bugs.python.org/issue42938 ↗

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.