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CVE-2019-19076

5.9 · MEDIUM

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 cons…

Published Nov 18, 2019CWE-401EPSS 3.17%

Overview

CVE-2019-19076 is a medium-severity vulnerability. It was published on November 18, 2019 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6Refgit.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2GitHubgithub.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96caReflore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/Refsecurity.netapp.com/advisory/ntap-20191205-0001/Refusn.ubuntu.com/4209-1/Refcdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6Refgit.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2GitHubgithub.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96caReflore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-19076?

CVE-2019-19076 is a medium-severity vulnerability. It was published on November 18, 2019 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2019-19076?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-19076?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-19076?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-19076 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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