Vulnerability · Published Dec 8, 2023 · Assigned by redhat

CVE-2023-6622Kernel: null pointer dereference vulnerability in nft_dynset_init()

Medium 5.5

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 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 74.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9bpftool7.3.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-64k-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-abi-stablelists4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-abi-stablelists5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-cross-headers4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-cross-headers5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-debug-uki-virt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-doc4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-doc5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-headers4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-headers5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-core4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-core4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-devel4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-kvm4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:8kernel-rt-modules4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-rt-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.rt7.342.el8_10ALSA-2024:2950
AlmaLinux:9kernel-rt-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools-libs4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools-libs5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-tools-libs-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-uki-virt5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-devel5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-modules5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9libperf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8perf4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9perf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:8python3-perf4.18.0-553.el8_10ALSA-2024:3138
AlmaLinux:9python3-perf5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9rtla5.14.0-427.13.1.el9_4ALSA-2024:2394
AlmaLinux:9rv5.14.0-427.13.1.el9_4ALSA-2024:2394
Debian:12linux6.1.69-1DEBIAN-CVE-2023-6622
Debian:12linux6.1.69-1DSA-5593-1
Debian:13linux6.6.8-1DEBIAN-CVE-2023-6622
Debian:14linux6.6.8-1DEBIAN-CVE-2023-6622
Rocky Linux:8kernel0:4.18.0-553.el8_10RLSA-2024:3138
Rocky Linux:8kernel-rt0:4.18.0-553.rt7.342.el8_10RLSA-2024:2950
Ubuntu:22.04:LTSlinux5.15.0-94.104UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux5.15.0-94.104USN-6626-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-aws5.15.0-1053.58UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-aws5.15.0-1053.58USN-6626-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure5.15.0-1056.64UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure5.15.0-1056.64USN-6626-3
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1056.64.1UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1056.64.1USN-6626-3
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gcp5.15.0-1051.59UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gcp5.15.0-1051.59USN-6626-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gke5.15.0-1050.55UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-gke5.15.0-1050.55USN-6626-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1036.42USN-6626-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1036.42UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-17.17~22.04.1UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-17.17~22.04.1USN-6624-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1046.49UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-ibm5.15.0-1046.49USN-6626-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1047.53USN-6628-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1047.53UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-kvm5.15.0-1050.55USN-6626-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1050.55UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-94.104UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-94.104USN-6626-2
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-17.17.1.1.1~22.04.1USN-6624-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-17.17.1.1.1~22.04.1UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1044.44UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1044.44USN-6626-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1022.22UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1009.9UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1033.33UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1033.33USN-6639-1
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1014.15USN-6624-1
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1014.15UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oracle5.15.0-1051.57UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-oracle5.15.0-1051.57USN-6626-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-raspi5.15.0-1046.49UBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-raspi5.15.0-1046.49USN-6626-2
Ubuntu:24.04:LTSlinux-raspi6.7.0-1001.1UBUNTU-CVE-2023-6622
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-6622
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1027.31UBUNTU-CVE-2023-6622

Affected products (as reported)

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

References