What is CVE-2019-19049?

CVE-2019-19049 is a high-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2019-11-18.

How severe is CVE-2019-19049?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Linux Kernel

CVE-2019-19049

A memory leak in the unittest_data_add() function in drivers/of/unittest.c in the Linux kernel before 5.3.10 allows attackers to cause a denial of service (memory consumption) by triggering of_fdt_unflatten_tree() failures, aka CID-e13de8fe0d6a. NOTE: third parties dispute the relevance of this because unittest.c can only be reached during boot

Published 2019-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.036 (89.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: +0.000

Affected products

Linux Kernel
openSUSE Leap — versions 15.1

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10 (Release Notes)
github.com/torvalds/linux/commit/e13de8fe0d6a51341671bbe384826d527afe8d44 (Patch)
bugzilla.suse.com/show_bug.cgi (Issue Tracking)
lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html (vendor-advisory, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19049?: CVE-2019-19049 is a high-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2019-11-18.
How severe is CVE-2019-19049?: High severity. CVSS v3 base score is 7.5 out of 10.