CVE-2019-19055

Name: CVE-2019-19055
Creator: NVD / NIST
Published: 2019-11-18T06:15:12.03+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2019-19055 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering nl80211hdr_put() failures, aka CID-1399c59fa929. NOTE: third parties dispute the relevance of this because it occurs on a code path where a successful allocation has already occurred. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering nl80211hdr_put() failures, aka CID-1399c59fa929. NOTE: third parties dispute the relevance of this because it occurs on a code path where a successful allocation has already occurred

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

0.41%

32.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.04
Canonical	Ubuntu Linux	19.10
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Linux	Linux Kernel	<= 5.3.11

References

https://bugzilla.suse.com/show_bug.cgi?id=1157319Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/1399c59fa92984836db90538cf92397fe7caaa57Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
https://usn.ubuntu.com/4225-1/Third Party Advisory
https://usn.ubuntu.com/4225-2/Third Party Advisory
https://usn.ubuntu.com/4226-1/Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1157319Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/1399c59fa92984836db90538cf92397fe7caaa57Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
https://usn.ubuntu.com/4225-1/Third Party Advisory
https://usn.ubuntu.com/4225-2/Third Party Advisory
https://usn.ubuntu.com/4226-1/Third Party Advisory

Timeline

Published: Nov 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-19055?

How severe is CVE-2019-19055?

CVE-2019-19055 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2019-19055?

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-2019-19055?

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

Scan your code now

Source: NVD / NIST