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Vulnerability · Published Feb 7, 2024 · Assigned by redhat

CVE-2023-6356Kernel: null pointer dereference in nvmet_tcp_build_iovec

Medium 6.5

In plain English

A medium-severity null pointer dereference in Red Hat Enterprise Linux 6 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.5%top 26.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-abi-stablelists4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-core4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-cross-headers4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-debug4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-debug-core4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-debug-devel4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-debug-modules4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-debug-modules-extra4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-devel4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-doc4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-modules4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-modules-extra4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-tools4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-tools-libs4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-tools-libs-devel4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-zfcpdump4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-zfcpdump-core4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-zfcpdump-devel4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-zfcpdump-modules4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8perf4.18.0-513.18.1.el8_9ALSA-2024:0897
AlmaLinux:8python3-perf4.18.0-513.18.1.el8_9ALSA-2024:0897
Debian:12linux6.1.76-1DEBIAN-CVE-2023-6356
Debian:13linux6.6.15-1DEBIAN-CVE-2023-6356
Debian:14linux6.6.15-1DEBIAN-CVE-2023-6356
Rocky Linux:9kernel0:5.14.0-362.24.1.el9_3.cloud.0.6RXSA-2024:1248
Ubuntu:22.04:LTSlinux5.15.0-102.112UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-40.40.1~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1UBUNTU-CVE-2023-6356
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-6356

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support see references
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat RHOL-5.8-RHEL-9 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References