CVE-2019-18809

Name: CVE-2019-18809
Creator: NVD / NIST
Published: 2019-11-07T16:15:11.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2019-18809 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. A memory leak in the af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

A memory leak in the af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559.

Metrics

CVSS 3.1

4.6/10

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

EPSS Probability

0.49%

38.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 5.3.9
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Debian	Debian Linux	8.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlThird Party Advisory
https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4285-1/Third Party Advisory
https://usn.ubuntu.com/4287-1/Third Party Advisory
https://usn.ubuntu.com/4287-2/Third Party Advisory
https://usn.ubuntu.com/4300-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlThird Party Advisory
https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
https://usn.ubuntu.com/4285-1/Third Party Advisory
https://usn.ubuntu.com/4287-1/Third Party Advisory
https://usn.ubuntu.com/4287-2/Third Party Advisory
https://usn.ubuntu.com/4300-1/Third Party Advisory

Timeline

Published: Nov 7, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-18809?

How severe is CVE-2019-18809?

CVE-2019-18809 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2019-18809?

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-2019-18809?

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

Scan your code now

Source: NVD / NIST