Vulnerability Monitor

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CVE-2019-19076

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

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 3 products from linux, from canonical, from redhat organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-11-18T06:15:13.420

Last Modified

2024-11-21T04:34:08.790

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
CWE-401

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 5.3.6	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes
Operating System	redhat	enterprise_linux	8.0	Yes

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6 Release Notes, Vendor Advisory ([email protected])
https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2 Patch, Vendor Advisory ([email protected])
https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96ca Patch, Third Party Advisory ([email protected])
https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/ ([email protected])
https://security.netapp.com/advisory/ntap-20191205-0001/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4209-1/ Third Party Advisory ([email protected])
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/linus/1d1997db870f4058676439ef7014390ba9e24eb2 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/78beef629fd95be4ed853b2d37b832f766bd96ca Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lore.kernel.org/lkml/20191204103955.63c4d9af%40cakuba.netronome.com/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20191205-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4209-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.