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CVE-2023-6356

Kernel: null pointer dereference in nvmet_tcp_build_iovec

Published: 2/7/2024 Last updated: 11/6/2025 Reserved: 11/28/2023

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

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

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (17)

Product Vendor Version
Red Hat Enterprise Linux 7 Red Hat QCA6335
Red Hat Enterprise Linux 6 Red Hat QCA6320
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat < 5.4
Red Hat Enterprise Linux 9 Red Hat QCA6420
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat 4.1.18
Red Hat Enterprise Linux 7 Red Hat QCA6391
RHOL-5.8-RHEL-9 Red Hat < 26.1
RHOL-5.8-RHEL-9 Red Hat <= 23.006.20360
RHOL-5.8-RHEL-9 Red Hat AQT1000
RHOL-5.8-RHEL-9 Red Hat FastConnect 6700
RHOL-5.8-RHEL-9 Red Hat FastConnect 6900
RHOL-5.8-RHEL-9 Red Hat QAM8255P
RHOL-5.8-RHEL-9 Red Hat QAM8650P
RHOL-5.8-RHEL-9 Red Hat QAMSRV1H
RHOL-5.8-RHEL-9 Red Hat QAMSRV1M
RHOL-5.8-RHEL-9 Red Hat QCA6174A
RHOL-5.8-RHEL-9 Red Hat QCA6310

References (46)

Credits (2)