CVE-2019-19462

Name: CVE-2019-19462
Creator: NVD / NIST
Published: 2019-11-30T01:15:10.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2019-19462 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.46%

36.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 5.4.1
Netapp	Active Iq Unified Manager	>= 9.5
Netapp	Hci Management Node	All versions
Netapp	Solidfire	All versions
Netapp	Hci Compute Node	All versions
Netapp	Hci Storage Node	All versions
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04
Opensuse	Leap	15.1
Opensuse	Leap	15.2
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
https://security.netapp.com/advisory/ntap-20210129-0004/Third Party Advisory
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8Patch, Third Party Advisory
https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531Patch, Third Party Advisory
https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046Third Party Advisory
https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7bThird Party Advisory
https://usn.ubuntu.com/4414-1/Third Party Advisory
https://usn.ubuntu.com/4425-1/Third Party Advisory
https://usn.ubuntu.com/4439-1/Third Party Advisory
https://usn.ubuntu.com/4440-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4698Third Party Advisory
https://www.debian.org/security/2020/dsa-4699Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing List, Third Party Advisory
https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
https://security.netapp.com/advisory/ntap-20210129-0004/Third Party Advisory
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8Patch, Third Party Advisory
https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531Patch, Third Party Advisory
https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046Third Party Advisory
https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7bThird Party Advisory
https://usn.ubuntu.com/4414-1/Third Party Advisory
https://usn.ubuntu.com/4425-1/Third Party Advisory
https://usn.ubuntu.com/4439-1/Third Party Advisory
https://usn.ubuntu.com/4440-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4698Third Party Advisory
https://www.debian.org/security/2020/dsa-4699Third Party Advisory

Timeline

Published: Nov 30, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19462?

relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.

How severe is CVE-2019-19462?

CVE-2019-19462 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19462?

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-2019-19462?

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

Scan your code now

Source: NVD / NIST