CVE-2019-19447

Name: CVE-2019-19447
Creator: NVD / NIST
Published: 2019-12-08T01:15:10.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 3.54%

Last modified Jun 17, 2026

CVE-2019-19447 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.. EPSS estimates a 3.54% chance of exploitation in the next 30 days.

Description

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

3.54%

87.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 2.6.12, < 3.16.82
Linux	Linux Kernel	>= 3.17, < 4.4.208
Linux	Linux Kernel	>= 4.5.0, < 4.9.208
Linux	Linux Kernel	>= 4.10, < 4.14.159
Linux	Linux Kernel	>= 4.15, < 4.19.90
Linux	Linux Kernel	>= 4.20, < 5.3.17
Linux	Linux Kernel	>= 5.4, < 5.4.4
Netapp	Active Iq Unified Manager	All versions
Netapp	Cloud Backup	All versions
Netapp	Data Availability Services	All versions
Netapp	Hci Baseboard Management Controller	h610s
Netapp	Steelstore Cloud Integrated Storage	All versions
Netapp	Solidfire Baseboard Management Controller	All versions

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlThird Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlThird Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory

Timeline

Published: Dec 8, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19447?

How severe is CVE-2019-19447?

CVE-2019-19447 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.54% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19447?

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-2019-19447?

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

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Source: NVD / NIST