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CVE-2019-19045

18
FAUCET Score

CVE-2019-19045 is a memory leak vulnerability in the Linux kernel's mlx5_fpga_conn_create_cq() function, affecting various Linux distributions including Canonical, openSUSE, and generic Linux kernel versions before 5.3.11. This flaw, rated Medium severity (CVSS 4.4), allows a high-privileged local attacker to trigger a denial of service through memory consumption. While the vulnerability has garnered minimal community discussion and media coverage, there is no evidence of active exploitation or publicly available exploit code.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.3.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
19.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 92nd percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-193.rt13.51.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-193.el8
View patch

Vendor Advisories (1)

redhatCVE-2019-19045Moderate

kernel: dos in mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c

Nov 18, 2019

References

lists.opensuse.org / opensuse-security-announce/2020-03/msg00021.html
Mailing ListThird Party Advisory
cdn.kernel.org / pub/linux/kernel/v5.x/ChangeLog-5.3.11
Release NotesVendor Advisory
github.com / torvalds/linux/commit/c8c2a057fdc7de1cd16f4baa51425b932a42eb39
PatchThird Party Advisory
security.netapp.com / advisory/ntap-20191205-0001
Third Party Advisory
usn.ubuntu.com / 4225-1
Third Party Advisory
usn.ubuntu.com / 4225-2
Third Party Advisory
usn.ubuntu.com / 4226-1
Third Party Advisory
usn.ubuntu.com / 4227-1
Third Party Advisory
usn.ubuntu.com / 4227-2
Third Party Advisory