CVE-2019-18808

Name: CVE-2019-18808
Creator: NVD / NIST
Published: 2019-11-07T16:15:11.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2019-18808 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.

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

0.33%

24.7th 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
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Opensuse	Leap	15.1
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/14/1Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2Patch, Third 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/4525-1/Third Party Advisory
https://usn.ubuntu.com/4526-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/14/1Mailing List, Third Party Advisory
https://github.com/torvalds/linux/commit/128c66429247add5128c03dc1e144ca56f05a4e2Patch, Third 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/4525-1/Third Party Advisory
https://usn.ubuntu.com/4526-1/Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-18808?

How severe is CVE-2019-18808?

CVE-2019-18808 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2019-18808?

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-2019-18808?

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

Scan your code now

Source: NVD / NIST