CVE-2023-6356

Kernel: null pointer dereference in nvmet_tcp_build_iovec

State: Published
Severity: 6.5 Medium
Published: Feb 7, 2024
Updated: Nov 6, 2025
Reserved: Nov 28, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	redhat

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
Red Hat Enterprise Linux 8Red Hat	0:4.18.0-513.18.1.rt7.320.el8_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:4.18.0-513.18.1.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	0:4.18.0-372.91.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	0:4.18.0-477.58.1.el8_8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.52.1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.52.1.rt14.337.el9_2 and laterNot affected
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat	0:4.18.0-372.91.1.el8_6 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-22 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-11 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v6.8.1-407 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-19 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.0.0-479 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-7 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.4.0-247 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-5 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.1.0-227 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.1-470 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v2.9.6-14 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-2 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-24 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-10 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-525 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-224 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.28.1-56 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2024:0723vendor-advisory
RHSA-2024:0724vendor-advisory
RHSA-2024:0725vendor-advisory
RHSA-2024:0881vendor-advisory
RHSA-2024:0897vendor-advisory
RHSA-2024:1248vendor-advisory
RHSA-2024:2094vendor-advisory
RHSA-2024:3810vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-6356vdb-entry
RHBZ#2254054issue-tracking
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
https://security.netapp.com/advisory/ntap-20240415-0002/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZFYW6R64GPLUOXSQBJI3JBUX3HGLAYPP/

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