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NTAP-20190926-0004 — CVE-2019-15903 Expat Vulnerability in NetApp Products

Published 2019-09-26 · Updated 2021-11-01 · Status: Final · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20190926-0004 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Other NetApp products · Active IQ Unified Manager · ONTAP · SolidFire / NetApp HCI · Cloud Backup / AltaVault / SteelStore · OnCommand family | ONTAP-relevant | highest CVSS: 7.5

CVEs in this advisory

CVE-2019-15903 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2019-15903 — In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS). <br><br> ONTAP: Only affects systems using FabricPool without TLS.

Affected products

7-Mode Transition Tool
Active IQ Unified Manager for VMware vSphere
Clustered Data ONTAP
NetApp HCI Baseboard Management Controller (BMC) - H610S
NetApp SolidFire Baseboard Management Controller (BMC)
NetApp SteelStore Cloud Integrated Storage
OnCommand Workflow Automation

Official fixes

Clustered Data ONTAP — vendor fix ↗
Active IQ Unified Manager for VMware vSphere — vendor fix ↗
7-Mode Transition Tool — vendor fix ↗
OnCommand Workflow Automation — vendor fix ↗
NetApp HCI Baseboard Management Controller (BMC) - H610S — vendor fix ↗
NetApp HCI Baseboard Management Controller (BMC) - H610S — vendor fix ↗

References

https://github.com/libexpat/libexpat/blob/R_2_2_8/expat/Changes ↗

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.