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CVE-2019-16233

18
FAUCET Score

CVE-2019-16233 is a NULL pointer dereference vulnerability in the Linux kernel (specifically, drivers/scsi/qla2xxx/qla_os.c in version 5.2.14) due to a missing check for the alloc_workqueue return value, affecting various Linux distributions including Canonical, openSUSE, and Red Hat. Rated Medium severity (CVSS 4.1), it requires high privileges and local access (AV:L/PR:H) with high attack complexity (AC:H) to achieve a high impact on availability (A:H). There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.2.14:*:*:*:*:*:*:*
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

4.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.5
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 84th percentile among its peer group of 418 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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 (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1160.rt56.1131.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1160.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-240.rt7.54.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-240.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2019-16233Low

kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c

Sep 9, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-11/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-11/msg00035.html
Mailing ListThird Party Advisory
lkml.org / lkml/2019/9/9/487
PatchThird Party Advisory
security.netapp.com / advisory/ntap-20191004-0001
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
usn.ubuntu.com / 4346-1