HIGH

CVE-2019-19447

CVSS v3

7.8

HIGH

EPSS Score

3.5 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

kernel-tools-libs-develAlmaLinux:8all versions · fixed in 4.18.0-240.el8

Vendor advisories

CVE-2019-19447 Red Hat Product Security710 products fixed · 1 known affected
kernel: 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
kernel.src as a component of Red Hat Enterprise MRG 2
RHSA-2020:5656 Red Hat Product Security117 products fixed
Red Hat Security Advisory: kernel security update
RHSA-2020:5430 Red Hat Product Security94 products fixed
Red Hat Security Advisory: kernel security and bug fix update
RHSA-2020:5206 Red Hat Product Security120 products fixed
Red Hat Security Advisory: kernel security and bug fix update
RHSA-2020:4609 Red Hat Product Security30 products fixed
Red Hat Security Advisory: kernel-rt security and bug fix update
RHSA-2020:4431 Red Hat Product Security120 products fixed
Red Hat Security Advisory: kernel security, bug fix, and enhancement update

3 more advisories

Full record on NVD

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.

Technical details

Published: 2019-12-08

Frequently asked questions

What is CVE-2019-19447?

Is CVE-2019-19447 actively exploited?

Active exploitation of CVE-2019-19447 has not been confirmed. Its EPSS score was 3.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19447?

CVE-2019-19447 has a CVSS v3 base score of 7.8 (HIGH severity).

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