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CVE-2023-6356

Kernel: null pointer dereference in nvmet_tcp_build_iovec

Published: Feb 7, 2024Updated: Nov 4, 2025 Sources: CVE List NVD BDUCWE-476
6.5CVSSMEDIUM

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

Affected Products

redhatcommercialUSOperating Systemsaka red hat
and 26 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

and 36 more references View all →

Timeline

Published
Feb 7, 2024
Last Updated
Nov 4, 2025

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