CVE-2019-19065

Name: CVE-2019-19065
Creator: NVD / NIST
Published: 2019-11-18T06:15:12.67+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2019-19065 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

A memory leak in the sdma_init() function in drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering rhashtable_init() failures, aka CID-34b3be18a04e. NOTE: This has been disputed as not a vulnerability because "rhashtable_init() can only fail if it is passed invalid values in the second parameter's struct, but when invoked from sdma_init() that is a pointer to a static const struct, so an attacker could only trigger failure if they could corrupt kernel memory (in which case a small memory leak is not a significant problem).

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.49%

38.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.3.9
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.04
Canonical	Ubuntu Linux	19.10
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlMailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/34b3be18a04ecdc610aae4c48e5d1b799d8689f6Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4208-1/Third Party Advisory
https://usn.ubuntu.com/4210-1/Third Party Advisory
https://usn.ubuntu.com/4226-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlMailing List, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9Release Notes, Vendor Advisory
https://github.com/torvalds/linux/commit/34b3be18a04ecdc610aae4c48e5d1b799d8689f6Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4208-1/Third Party Advisory
https://usn.ubuntu.com/4210-1/Third Party Advisory
https://usn.ubuntu.com/4226-1/Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-19065?

How severe is CVE-2019-19065?

CVE-2019-19065 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19065?

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-2019-19065?

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

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Source: NVD / NIST