SARA / Free Tools / CVE / CVE-2023-6356

CVE-2023-6356 — A flaw was found in the Linux kernel's NVMe driver

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a

CVSS
6.5 MEDIUM
EPSS
0.02% (top 94.30%)
CWE
CWE-476
Published
2024-02-07T21:04:20.684Z
Last modified
2025-11-06T21:45:11.718Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 80:4.18.0-513.18.1.rt7.320.el8_9
Red HatRed Hat Enterprise Linux 80:4.18.0-513.18.1.el8_9
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:4.18.0-372.91.1.el8_6
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:4.18.0-477.58.1.el8_8
Red HatRed Hat Enterprise Linux 90:5.14.0-362.24.1.el9_3
Red HatRed Hat Enterprise Linux 90:5.14.0-362.24.1.el9_3
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.52.1.el9_2
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.52.1.rt14.337.el9_2
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 80:4.18.0-372.91.1.el8_6
Red HatRHOL5.8-RHEL-9 — v5.8.6-22
Red HatRHOL5.8-RHEL-9 — v5.8.6-11
Red HatRHOL5.8-RHEL-9 — v6.8.1-407
Red HatRHOL5.8-RHEL-9 — v5.8.6-19
Red HatRHOL5.8-RHEL-9 — v1.0.0-479
Red HatRHOL5.8-RHEL-9 — v5.8.6-7
Red HatRHOL5.8-RHEL-9 — v0.4.0-247
Red HatRHOL5.8-RHEL-9 — v5.8.6-5
Red HatRHOL5.8-RHEL-9 — v1.1.0-227
Red HatRHOL5.8-RHEL-9 — v5.8.1-470
Red HatRHOL5.8-RHEL-9 — v2.9.6-14
Red HatRHOL5.8-RHEL-9 — v5.8.6-2
Red HatRHOL5.8-RHEL-9 — v5.8.6-24
Red HatRHOL5.8-RHEL-9 — v5.8.6-10
Red HatRHOL5.8-RHEL-9 — v0.1.0-525
Red HatRHOL5.8-RHEL-9 — v0.1.0-224
Red HatRHOL5.8-RHEL-9 — v0.28.1-56
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 9unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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