CWE
923
Advisory Published
Updated

CVE-2022-2663

First published: Tue Aug 30 2022(Updated: )

An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-477.10.1.rt7.274.el8_8
0:4.18.0-477.10.1.rt7.274.el8_8
redhat/kernel<0:4.18.0-477.10.1.el8_8
0:4.18.0-477.10.1.el8_8
redhat/kernel<0:5.14.0-284.11.1.el9_2
0:5.14.0-284.11.1.el9_2
redhat/kernel-rt<0:5.14.0-284.11.1.rt14.296.el9_2
0:5.14.0-284.11.1.rt14.296.el9_2
Linux Linux kernel
Debian Debian Linux=10.0
Debian Debian Linux=11.0
ubuntu/linux<4.15.0-204.215
4.15.0-204.215
ubuntu/linux<5.4.0-136.153
5.4.0-136.153
ubuntu/linux<5.15.0-57.63
5.15.0-57.63
ubuntu/linux<5.19.0-28.29
5.19.0-28.29
ubuntu/linux<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux<4.4.0-239.273
4.4.0-239.273
ubuntu/linux-allwinner<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-allwinner-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws<4.15.0-1150.163
4.15.0-1150.163
ubuntu/linux-aws<5.4.0-1093.101
5.4.0-1093.101
ubuntu/linux-aws<5.15.0-1027.31
5.15.0-1027.31
ubuntu/linux-aws<5.19.0-1016.17
5.19.0-1016.17
ubuntu/linux-aws<4.4.0-1117.123
4.4.0-1117.123
ubuntu/linux-aws<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws<4.4.0-1155.170
4.4.0-1155.170
ubuntu/linux-aws-5.0<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-5.15<5.15.0-1027.31~20.04.1
5.15.0-1027.31~20.04.1
ubuntu/linux-aws-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-5.4<5.4.0-1093.102~18.04.2
5.4.0-1093.102~18.04.2
ubuntu/linux-aws-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-6.2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-fips<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-hwe<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-aws-hwe<4.15.0-1151.164~16.04.1
4.15.0-1151.164~16.04.1
ubuntu/linux-azure<5.4.0-1100.106
5.4.0-1100.106
ubuntu/linux-azure<5.15.0-1030.37
5.15.0-1030.37
ubuntu/linux-azure<5.19.0-1016.17
5.19.0-1016.17
ubuntu/linux-azure<4.15.0-1162.177~14.04.1
4.15.0-1162.177~14.04.1
ubuntu/linux-azure<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure<4.15.0-1162.177~16.04.1
4.15.0-1162.177~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1161.176
4.15.0-1161.176
ubuntu/linux-azure-4.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-5.15<5.15.0-1030.37~20.04.1
5.15.0-1030.37~20.04.1
ubuntu/linux-azure-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-5.4<5.4.0-1100.106~18.04.1
5.4.0-1100.106~18.04.1
ubuntu/linux-azure-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-6.2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-edge<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-fde<5.4.0-1100.106
5.4.0-1100.106
ubuntu/linux-azure-fde<5.15.0-1030.37.1
5.15.0-1030.37.1
ubuntu/linux-azure-fde<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-fde-5.15<5.15.0-1030.37~20.04.1.1
5.15.0-1030.37~20.04.1.1
ubuntu/linux-azure-fde-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-fde-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-fde-6.2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-azure-fips<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-bluefield<5.4.0-1054.60
5.4.0-1054.60
ubuntu/linux-bluefield<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-dell300x<4.15.0-1060.65
4.15.0-1060.65
ubuntu/linux-dell300x<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-fips<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp<5.4.0-1097.106
5.4.0-1097.106
ubuntu/linux-gcp<5.15.0-1026.33
5.15.0-1026.33
ubuntu/linux-gcp<5.19.0-1014.15
5.19.0-1014.15
ubuntu/linux-gcp<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp<4.15.0-1146.162~16.04.1
4.15.0-1146.162~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1145.161
4.15.0-1145.161
ubuntu/linux-gcp-4.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp-5.15<5.15.0-1026.33~20.04.1
5.15.0-1026.33~20.04.1
ubuntu/linux-gcp-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp-5.4<5.4.0-1097.106~18.04.1
5.4.0-1097.106~18.04.1
ubuntu/linux-gcp-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gcp-fips<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gke<5.4.0-1091.98
5.4.0-1091.98
ubuntu/linux-gke<5.15.0-1024.29
5.15.0-1024.29
ubuntu/linux-gke<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gke-4.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gke-5.0<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gke-5.15<5.15.0-1027.32~20.04.1
5.15.0-1027.32~20.04.1
ubuntu/linux-gke-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gke-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gkeop<5.4.0-1061.65
5.4.0-1061.65
ubuntu/linux-gkeop<5.15.0-1012.16
5.15.0-1012.16
ubuntu/linux-gkeop<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gkeop-5.15<5.15.0-1012.16~20.04.1
5.15.0-1012.16~20.04.1
ubuntu/linux-gkeop-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-gkeop-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe<4.15.0-206.217~16.04.1
4.15.0-206.217~16.04.1
ubuntu/linux-hwe-5.15<5.15.0-57.63~20.04.1
5.15.0-57.63~20.04.1
ubuntu/linux-hwe-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe-5.4<5.4.0-136.153~18.04.1
5.4.0-136.153~18.04.1
ubuntu/linux-hwe-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe-6.2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-hwe-edge<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-ibm<5.4.0-1041.46
5.4.0-1041.46
ubuntu/linux-ibm<5.15.0-1022.25
5.15.0-1022.25
ubuntu/linux-ibm<5.19.0-1014.15
5.19.0-1014.15
ubuntu/linux-ibm<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-ibm-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-ibm-5.4<5.4.0-1041.46~18.04.1
5.4.0-1041.46~18.04.1
ubuntu/linux-ibm-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-intel<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-intel-5.13<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-intel-iotg<5.15.0-1023.28
5.15.0-1023.28
ubuntu/linux-intel-iotg<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-intel-iotg-5.15<5.15.0-1023.28~20.04.1
5.15.0-1023.28~20.04.1
ubuntu/linux-intel-iotg-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-iot<5.4.0-1010.12
5.4.0-1010.12
ubuntu/linux-iot<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-kvm<4.15.0-1135.140
4.15.0-1135.140
ubuntu/linux-kvm<5.4.0-1083.89
5.4.0-1083.89
ubuntu/linux-kvm<5.15.0-1025.30
5.15.0-1025.30
ubuntu/linux-kvm<5.19.0-1015.16
5.19.0-1015.16
ubuntu/linux-kvm<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-kvm<4.4.0-1118.128
4.4.0-1118.128
ubuntu/linux-laptop<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lowlatency<5.15.0-57.63
5.15.0-57.63
ubuntu/linux-lowlatency<5.19.0-1014.15
5.19.0-1014.15
ubuntu/linux-lowlatency<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lowlatency-hwe-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lowlatency-hwe-6.2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lowlatency-hwe-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-lts-xenial<4.4.0-239.273~14.04.1
4.4.0-239.273~14.04.1
ubuntu/linux-lts-xenial<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-nvidia<5.15.0-1015.15
5.15.0-1015.15
ubuntu/linux-nvidia<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-nvidia-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-5.10<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-5.14<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-5.17<5.17.0-1035.36
5.17.0-1035.36
ubuntu/linux-oem-5.17<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-5.6<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-6.0<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-6.1<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-6.8<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oem-osp1<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle<4.15.0-1114.125
4.15.0-1114.125
ubuntu/linux-oracle<5.4.0-1091.100
5.4.0-1091.100
ubuntu/linux-oracle<5.15.0-1026.32
5.15.0-1026.32
ubuntu/linux-oracle<5.19.0-1014.16
5.19.0-1014.16
ubuntu/linux-oracle<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle<4.15.0-1115.126~16.04.1
4.15.0-1115.126~16.04.1
ubuntu/linux-oracle-5.0<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle-5.13<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle-5.15<5.15.0-1027.33~20.04.1
5.15.0-1027.33~20.04.1
ubuntu/linux-oracle-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle-5.4<5.4.0-1091.100~18.04.1
5.4.0-1091.100~18.04.1
ubuntu/linux-oracle-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-oracle-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-raspi<5.4.0-1078.89
5.4.0-1078.89
ubuntu/linux-raspi<5.15.0-1022.24
5.15.0-1022.24
ubuntu/linux-raspi<5.19.0-1011.18
5.19.0-1011.18
ubuntu/linux-raspi<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-raspi-5.4<5.4.0-1078.89~18.04.1
5.4.0-1078.89~18.04.1
ubuntu/linux-raspi-5.4<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-raspi2<4.15.0-1127.135
4.15.0-1127.135
ubuntu/linux-raspi2<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-riscv<5.15.0-1027.31
5.15.0-1027.31
ubuntu/linux-riscv<5.19.0-1011.12
5.19.0-1011.12
ubuntu/linux-riscv<6.2.0-19.19.1
6.2.0-19.19.1
ubuntu/linux-riscv<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-riscv-5.15<5.15.0-1027.31~20.04.1
5.15.0-1027.31~20.04.1
ubuntu/linux-riscv-5.15<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-riscv-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-snapdragon<4.15.0-1145.155
4.15.0-1145.155
ubuntu/linux-snapdragon<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-starfive<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-starfive<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-starfive-5.19<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-starfive-6.5<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
ubuntu/linux-xilinx-zynqmp<6.0~<5.4.215<5.15.71
6.0~
5.4.215
5.15.71
debian/linux
5.10.218-1
6.1.94-1
6.1.90-1
6.9.8-1
6.9.9-1

Remedy

To mitigate this issue, prevent the module nf_conntrack_irc from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.

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