MEDIUM

CVE-2019-19767

CVSS v3

5.5

MEDIUM

EPSS Score

2.1 %

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-2019-19767 Red Hat Product Security379 products fixed · 12 known affected
kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c
kernel-rt as a component of Red Hat Enterprise MRG 2 · kernel-rt-debug as a component of Red Hat Enterprise MRG 2 · kernel-rt-debug-devel as a component of Red Hat Enterprise MRG 2
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
RHSA-2020:4060 Red Hat Product Security174 products fixed
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
RHSA-2020:4062 Red Hat Product Security30 products fixed
Red Hat Security Advisory: kernel-rt security and bug fix update
RHSA-2020:2854 Red Hat Product Security25 products fixed
Red Hat Security Advisory: kernel-alt security and bug fix update

Full record on NVD

Description

The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.

Technical details

Published: 2019-12-12

Frequently asked questions

What is CVE-2019-19767?

Is CVE-2019-19767 actively exploited?

Active exploitation of CVE-2019-19767 has not been confirmed. Its EPSS score was 2.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19767?

CVE-2019-19767 has a CVSS v3 base score of 5.5 (MEDIUM severity).

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