First published: Mon Mar 06 2023(Updated: )
A flaw in the Linux Kernel found in the Linux kernel’s networking stack which permits attackers to force hash collisions in the IPv6 connection lookup table. This results in a significant increase in the cost of lookups, causing increased CPU utilization. This significant CPU usage increase in the Linux kernel subjected to a modified form of the classic IPv6 SYN-Flood. The actual impact of this issue may be a denial of service (due to heightened CPU usage) to hosts which can receive malicious IPv6 traffic.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Linux kernel | <6.5 | |
Redhat Enterprise Linux | =8.0 | |
Redhat Enterprise Linux | =9.0 | |
Fedoraproject Fedora | =38 | |
redhat/kernel | <6.5 | 6.5 |
IBM QRadar SIEM | <=7.5 - 7.5.0 UP8 IF01 | |
debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 | |
ubuntu/linux | <4.15.0-219.230 | 4.15.0-219.230 |
ubuntu/linux | <5.4.0-164.181 | 5.4.0-164.181 |
ubuntu/linux | <5.15.0-86.96 | 5.15.0-86.96 |
ubuntu/linux | <6.2.0-34.34 | 6.2.0-34.34 |
ubuntu/linux | <3.13.0-194.245 | 3.13.0-194.245 |
ubuntu/linux | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux | <4.4.0-246.280 | 4.4.0-246.280 |
ubuntu/linux-aws | <4.15.0-1162.175 | 4.15.0-1162.175 |
ubuntu/linux-aws | <5.4.0-1111.120 | 5.4.0-1111.120 |
ubuntu/linux-aws | <5.15.0-1047.52 | 5.15.0-1047.52 |
ubuntu/linux-aws | <6.2.0-1013.13 | 6.2.0-1013.13 |
ubuntu/linux-aws | <4.4.0-1124.130 | 4.4.0-1124.130 |
ubuntu/linux-aws | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws | <4.4.0-1162.177 | 4.4.0-1162.177 |
ubuntu/linux-aws-5.0 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-5.15 | <5.15.0-1047.52~20.04.1 | 5.15.0-1047.52~20.04.1 |
ubuntu/linux-aws-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-5.4 | <5.4.0-1111.120~18.04.1 | 5.4.0-1111.120~18.04.1 |
ubuntu/linux-aws-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-6.2 | <6.2.0-1013.13~22.04.1 | 6.2.0-1013.13~22.04.1 |
ubuntu/linux-aws-6.2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-fips | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-hwe | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-aws-hwe | <4.15.0-1162.175~16.04.1 | 4.15.0-1162.175~16.04.1 |
ubuntu/linux-azure | <5.4.0-1117.124 | 5.4.0-1117.124 |
ubuntu/linux-azure | <5.15.0-1049.56 | 5.15.0-1049.56 |
ubuntu/linux-azure | <6.2.0-1014.14 | 6.2.0-1014.14 |
ubuntu/linux-azure | <4.15.0-1171.186~14.04.1 | 4.15.0-1171.186~14.04.1 |
ubuntu/linux-azure | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure | <4.15.0-1171.186~16.04.1 | 4.15.0-1171.186~16.04.1 |
ubuntu/linux-azure-4.15 | <4.15.0-1171.186 | 4.15.0-1171.186 |
ubuntu/linux-azure-4.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-5.15 | <5.15.0-1049.56~20.04.1 | 5.15.0-1049.56~20.04.1 |
ubuntu/linux-azure-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-5.4 | <5.4.0-1117.124~18.04.1 | 5.4.0-1117.124~18.04.1 |
ubuntu/linux-azure-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-6.2 | <6.2.0-1014.14~22.04.1 | 6.2.0-1014.14~22.04.1 |
ubuntu/linux-azure-6.2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-edge | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-fde | <5.15.0-1049.56.1 | 5.15.0-1049.56.1 |
ubuntu/linux-azure-fde | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-fde-5.15 | <5.15.0-1049.56~20.04.1.1 | 5.15.0-1049.56~20.04.1.1 |
ubuntu/linux-azure-fde-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-fde-5.19 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-fde-6.2 | <6.2.0-1014.14~22.04.1.1 | 6.2.0-1014.14~22.04.1.1 |
ubuntu/linux-azure-fde-6.2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-azure-fips | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-bluefield | <5.4.0-1072.78 | 5.4.0-1072.78 |
ubuntu/linux-bluefield | <5.15.0-1027.29 | 5.15.0-1027.29 |
ubuntu/linux-bluefield | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-dell300x | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-fips | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp | <5.4.0-1115.124 | 5.4.0-1115.124 |
ubuntu/linux-gcp | <5.15.0-1044.52 | 5.15.0-1044.52 |
ubuntu/linux-gcp | <6.2.0-1016.18 | 6.2.0-1016.18 |
ubuntu/linux-gcp | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp | <4.15.0-1156.173~16.04.1 | 4.15.0-1156.173~16.04.1 |
ubuntu/linux-gcp-4.15 | <4.15.0-1156.173 | 4.15.0-1156.173 |
ubuntu/linux-gcp-4.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp-5.15 | <5.15.0-1044.52~20.04.1 | 5.15.0-1044.52~20.04.1 |
ubuntu/linux-gcp-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp-5.4 | <5.4.0-1115.124~18.04.1 | 5.4.0-1115.124~18.04.1 |
ubuntu/linux-gcp-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp-6.2 | <6.2.0-1016.18~22.04.1 | 6.2.0-1016.18~22.04.1 |
ubuntu/linux-gcp-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gcp-fips | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gke | <5.15.0-1044.49 | 5.15.0-1044.49 |
ubuntu/linux-gke | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gke-4.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gke-5.0 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gke-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gke-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gkeop | <5.4.0-1078.82 | 5.4.0-1078.82 |
ubuntu/linux-gkeop | <5.15.0-1030.35 | 5.15.0-1030.35 |
ubuntu/linux-gkeop | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gkeop-5.15 | <5.15.0-1030.35~20.04.1 | 5.15.0-1030.35~20.04.1 |
ubuntu/linux-gkeop-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-gkeop-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe | <4.15.0-219.230~16.04.1 | 4.15.0-219.230~16.04.1 |
ubuntu/linux-hwe-5.15 | <5.15.0-86.96~20.04.1 | 5.15.0-86.96~20.04.1 |
ubuntu/linux-hwe-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe-5.4 | <5.4.0-164.181~18.04.1 | 5.4.0-164.181~18.04.1 |
ubuntu/linux-hwe-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe-6.2 | <6.2.0-34.34~22.04.1 | 6.2.0-34.34~22.04.1 |
ubuntu/linux-hwe-6.2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-hwe-edge | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-ibm | <5.4.0-1058.63 | 5.4.0-1058.63 |
ubuntu/linux-ibm | <5.15.0-1040.43 | 5.15.0-1040.43 |
ubuntu/linux-ibm | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-ibm-5.15 | <5.15.0-1040.43~20.04.1 | 5.15.0-1040.43~20.04.1 |
ubuntu/linux-ibm-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-ibm-5.4 | <5.4.0-1058.63~18.04.1 | 5.4.0-1058.63~18.04.1 |
ubuntu/linux-ibm-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-intel | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-intel-5.13 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-intel-iotg | <5.15.0-1043.49 | 5.15.0-1043.49 |
ubuntu/linux-intel-iotg | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-intel-iotg-5.15 | <5.15.0-1043.49~20.04.1 | 5.15.0-1043.49~20.04.1 |
ubuntu/linux-intel-iotg-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-iot | <5.4.0-1023.24 | 5.4.0-1023.24 |
ubuntu/linux-iot | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-kvm | <4.15.0-1146.151 | 4.15.0-1146.151 |
ubuntu/linux-kvm | <5.4.0-1100.106 | 5.4.0-1100.106 |
ubuntu/linux-kvm | <5.15.0-1044.49 | 5.15.0-1044.49 |
ubuntu/linux-kvm | <6.2.0-1014.14 | 6.2.0-1014.14 |
ubuntu/linux-kvm | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-kvm | <4.4.0-1125.135 | 4.4.0-1125.135 |
ubuntu/linux-laptop | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lowlatency | <5.15.0-86.95 | 5.15.0-86.95 |
ubuntu/linux-lowlatency | <6.2.0-1014.14 | 6.2.0-1014.14 |
ubuntu/linux-lowlatency | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-86.95~20.04.1 | 5.15.0-86.95~20.04.1 |
ubuntu/linux-lowlatency-hwe-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lowlatency-hwe-5.19 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lowlatency-hwe-6.2 | <6.2.0-1014.14~22.04.1 | 6.2.0-1014.14~22.04.1 |
ubuntu/linux-lowlatency-hwe-6.2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lowlatency-hwe-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-lts-xenial | <4.4.0-246.280~14.04.1 | 4.4.0-246.280~14.04.1 |
ubuntu/linux-lts-xenial | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-nvidia | <5.15.0-1037.37 | 5.15.0-1037.37 |
ubuntu/linux-nvidia | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-nvidia-6.2 | <6.2.0-1011.11 | 6.2.0-1011.11 |
ubuntu/linux-nvidia-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-nvidia-6.8 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-nvidia-lowlatency | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-5.10 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-5.14 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-5.17 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-5.6 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-6.0 | <6.0.0-1021.21 | 6.0.0-1021.21 |
ubuntu/linux-oem-6.0 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-6.1 | <6.1.0-1021.21 | 6.1.0-1021.21 |
ubuntu/linux-oem-6.1 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-6.8 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oem-osp1 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle | <4.15.0-1125.136 | 4.15.0-1125.136 |
ubuntu/linux-oracle | <5.4.0-1110.119 | 5.4.0-1110.119 |
ubuntu/linux-oracle | <5.15.0-1045.51 | 5.15.0-1045.51 |
ubuntu/linux-oracle | <6.2.0-1013.13 | 6.2.0-1013.13 |
ubuntu/linux-oracle | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle | <4.15.0-1125.136~16.04.1 | 4.15.0-1125.136~16.04.1 |
ubuntu/linux-oracle-5.0 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle-5.13 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle-5.15 | <5.15.0-1045.51~20.04.1 | 5.15.0-1045.51~20.04.1 |
ubuntu/linux-oracle-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle-5.4 | <5.4.0-1110.119~18.04.1 | 5.4.0-1110.119~18.04.1 |
ubuntu/linux-oracle-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-oracle-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-raspi | <5.4.0-1095.106 | 5.4.0-1095.106 |
ubuntu/linux-raspi | <5.15.0-1040.43 | 5.15.0-1040.43 |
ubuntu/linux-raspi | <6.2.0-1014.16 | 6.2.0-1014.16 |
ubuntu/linux-raspi | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-raspi-5.4 | <5.4.0-1095.106~18.04.1 | 5.4.0-1095.106~18.04.1 |
ubuntu/linux-raspi-5.4 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-raspi2 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-riscv | <6.2.0-34.34.1 | 6.2.0-34.34.1 |
ubuntu/linux-riscv | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-riscv-5.15 | <5.15.0-1043.47~20.04.1 | 5.15.0-1043.47~20.04.1 |
ubuntu/linux-riscv-5.15 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-riscv-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-snapdragon | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-starfive | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-starfive-6.5 | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
ubuntu/linux-xilinx-zynqmp | <5.4.0-1031.35 | 5.4.0-1031.35 |
ubuntu/linux-xilinx-zynqmp | <5.15.0-1025.29 | 5.15.0-1025.29 |
ubuntu/linux-xilinx-zynqmp | <6.5~<5.4.253<5.15.124 | 6.5~ 5.4.253 5.15.124 |
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
(Appears in the following advisories)