CVE-2019-19076

Name: CVE-2019-19076
Creator: NVD / NIST
Published: 2019-11-18T06:15:13.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 3.17%

Last modified Jun 17, 2026

CVE-2019-19076 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. EPSS estimates a 3.17% chance of exploitation in the next 30 days.

Description

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

3.17%

86.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.3.6
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.04
Redhat	Enterprise Linux	8.0

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6Release Notes, Vendor Advisory
https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96caPatch, Third Party Advisory
https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4209-1/Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6Release Notes, Vendor Advisory
https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96caPatch, Third Party Advisory
https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4209-1/Third Party Advisory

Timeline

Published: Nov 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19076?

How severe is CVE-2019-19076?

CVE-2019-19076 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 3.17% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19076?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-19076?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST