Home / Security / Advisories / NTAP-20190905-0001

NTAP-20190905-0001 — CVE-2019-8460 OpenBSD Vulnerability in NetApp Products

Published 2019-09-05 · Updated 2021-01-15 · Status: Final · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20190905-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: ONTAP | ONTAP-relevant | highest CVSS: 7.5

CVEs in this advisory

CVE-2019-8460 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2019-8460 — OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).<BR><BR> This only affects Clustered Data ONTAP 9.1 and below.

Affected products

Clustered Data ONTAP
Data ONTAP operating in 7-Mode

Official fixes

Clustered Data ONTAP — vendor fix ↗
Data ONTAP operating in 7-Mode — vendor fix ↗

References

https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig ↗

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.