First published: Tue Feb 22 2022(Updated: )
An out-of-bounds (OOB) memory access flaw was found in nft_fwd_dup_netdev_offload in net/netfilter/nf_dup_netdev.c in netfilter subcomponent in the Linux kernel due to a heap out of bounds write problem. In this flaw, an attacker with a user account on the system to gain access to out-of-bounds memory leads to a system crash or a privilege escalation threat. Reference: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6">https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git/commit/?id=b1a5983f56e371046dcf164f90bfaf704d2b89f6</a> <a href="https://www.openwall.com/lists/oss-security/2022/02/21/2">https://www.openwall.com/lists/oss-security/2022/02/21/2</a>
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/kernel-rt | <0:4.18.0-348.23.1.rt7.153.el8_5 | 0:4.18.0-348.23.1.rt7.153.el8_5 |
redhat/kernel | <0:4.18.0-348.23.1.el8_5 | 0:4.18.0-348.23.1.el8_5 |
redhat/kernel-rt | <0:4.18.0-305.45.1.rt7.117.el8_4 | 0:4.18.0-305.45.1.rt7.117.el8_4 |
redhat/kernel | <0:4.18.0-305.45.1.el8_4 | 0:4.18.0-305.45.1.el8_4 |
Linux Linux kernel | >=5.4<5.4.182 | |
Linux Linux kernel | >=5.5<5.10.103 | |
Linux Linux kernel | >=5.11<5.15.26 | |
Linux Linux kernel | >=5.16<5.16.12 | |
Debian Debian Linux | =11.0 | |
Netapp Baseboard Management Controller H300e | ||
Netapp Baseboard Management Controller H300s | ||
Netapp Baseboard Management Controller H410c | ||
Netapp Baseboard Management Controller H410s | ||
Netapp Baseboard Management Controller H500e | ||
Netapp Baseboard Management Controller H500s | ||
Netapp Baseboard Management Controller H700e | ||
Netapp Baseboard Management Controller H700s | ||
Oracle Communications Cloud Native Core Binding Support Function | =22.1.3 | |
Oracle Communications Cloud Native Core Network Exposure Function | =22.1.1 | |
Oracle Communications Cloud Native Core Policy | =22.2.0 | |
Netapp H300e | ||
Netapp H300s | ||
Netapp H410c | ||
Netapp H410s | ||
Netapp H500e | ||
Netapp H500s | ||
Netapp H700e | ||
Netapp H700s | ||
ubuntu/linux | <5.4.0-104.118 | 5.4.0-104.118 |
ubuntu/linux | <5.13.0-35.40 | 5.13.0-35.40 |
ubuntu/linux | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws | <5.4.0-1068.72 | 5.4.0-1068.72 |
ubuntu/linux-aws | <5.13.0-1017.19 | 5.13.0-1017.19 |
ubuntu/linux-aws | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.0 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.13 | <5.13.0-1017.19~20.04.1 | 5.13.0-1017.19~20.04.1 |
ubuntu/linux-aws-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.4 | <5.4.0-1068.72~18.04.1 | 5.4.0-1068.72~18.04.1 |
ubuntu/linux-aws-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-5.8 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-fips | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-aws-hwe | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure | <5.4.0-1072.75 | 5.4.0-1072.75 |
ubuntu/linux-azure | <5.13.0-1017.19 | 5.13.0-1017.19 |
ubuntu/linux-azure | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-4.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-5.13 | <5.13.0-1017.19~20.04.1 | 5.13.0-1017.19~20.04.1 |
ubuntu/linux-azure-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-5.4 | <5.4.0-1072.75~18.04.1 | 5.4.0-1072.75~18.04.1 |
ubuntu/linux-azure-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-edge | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-fde | <5.4.0-1072.75 | 5.4.0-1072.75 |
ubuntu/linux-azure-fde | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-fde-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-azure-fips | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-bluefield | <5.4.0-1030.33 | 5.4.0-1030.33 |
ubuntu/linux-bluefield | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-dell300x | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-fips | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp | <5.4.0-1067.71 | 5.4.0-1067.71 |
ubuntu/linux-gcp | <5.13.0-1019.23 | 5.13.0-1019.23 |
ubuntu/linux-gcp | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-4.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-5.13 | <5.13.0-1019.23~20.04.1 | 5.13.0-1019.23~20.04.1 |
ubuntu/linux-gcp-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-5.4 | <5.4.0-1067.71~18.04.1 | 5.4.0-1067.71~18.04.1 |
ubuntu/linux-gcp-5.8 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gcp-fips | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gke | <5.4.0-1065.68 | 5.4.0-1065.68 |
ubuntu/linux-gke | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gke-4.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gke-5.0 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gke-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gke-5.4 | <5.4.0-1065.68~18.04.1 | 5.4.0-1065.68~18.04.1 |
ubuntu/linux-gke-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gkeop | <5.4.0-1036.37 | 5.4.0-1036.37 |
ubuntu/linux-gkeop | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gkeop-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-gkeop-5.4 | <5.4.0-1036.37~18.04.1 | 5.4.0-1036.37~18.04.1 |
ubuntu/linux-gkeop-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-5.13 | <5.13.0-35.40~20.04.1 | 5.13.0-35.40~20.04.1 |
ubuntu/linux-hwe-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-5.4 | <5.4.0-104.118~18.04.1 | 5.4.0-104.118~18.04.1 |
ubuntu/linux-hwe-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-5.8 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-hwe-edge | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-ibm | <5.4.0-1017.19 | 5.4.0-1017.19 |
ubuntu/linux-ibm | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-ibm-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-ibm-5.4 | <5.4.0-1017.19~18.04.1 | 5.4.0-1017.19~18.04.1 |
ubuntu/linux-ibm-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-intel | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-intel-5.13 | <5.13.0-1010.10 | 5.13.0-1010.10 |
ubuntu/linux-intel-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-intel-iotg | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-intel-iotg-5.15 | <5.15.0-1008.11~20.04.1 | 5.15.0-1008.11~20.04.1 |
ubuntu/linux-intel-iotg-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-iot | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-kvm | <5.4.0-1058.61 | 5.4.0-1058.61 |
ubuntu/linux-kvm | <5.13.0-1016.17 | 5.13.0-1016.17 |
ubuntu/linux-kvm | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-laptop | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-lowlatency | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-lowlatency-hwe-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-lowlatency-hwe-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-lts-xenial | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-nvidia | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-nvidia-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-5.10 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-5.14 | <5.14.0-1027.30 | 5.14.0-1027.30 |
ubuntu/linux-oem-5.17 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-5.6 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-6.8 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oem-osp1 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle | <5.4.0-1066.71 | 5.4.0-1066.71 |
ubuntu/linux-oracle | <5.13.0-1021.26 | 5.13.0-1021.26 |
ubuntu/linux-oracle | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.0 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.13 | <5.13.0-1021.26~20.04.1 | 5.13.0-1021.26~20.04.1 |
ubuntu/linux-oracle-5.13 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-oracle-5.4 | <5.4.0-1066.71~18.04.1 | 5.4.0-1066.71~18.04.1 |
ubuntu/linux-oracle-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-raspi | <5.4.0-1055.62 | 5.4.0-1055.62 |
ubuntu/linux-raspi | <5.13.0-1020.22 | 5.13.0-1020.22 |
ubuntu/linux-raspi | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-raspi-5.4 | <5.4.0-1055.62~18.04.1 | 5.4.0-1055.62~18.04.1 |
ubuntu/linux-raspi-5.4 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-raspi2 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-raspi2-5.3 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-riscv | <5.13.0-1015.17 | 5.13.0-1015.17 |
ubuntu/linux-riscv | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-riscv-5.11 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-riscv-5.15 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-riscv-5.8 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-riscv-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-snapdragon | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-starfive | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-starfive-6.5 | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
ubuntu/linux-xilinx-zynqmp | <5.17~<5.4.182<5.15.26 | 5.17~ 5.4.182 5.15.26 |
debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.12-1 6.10.3-1 |
The mitigation for the Red Hat Enterprise Linux 8 is to disable for unprivileged user possibilities of running unshare(CLONE_NEWUSER) or unshare(CLONE_NEWNET) that could be done with the next command: echo 0 > /proc/sys/user/max_user_namespaces For making this change in configuration permanent. Note: User namespaces are used primarily for Linux containers. If containers are in use, this requirement is not applicable. Configure RHEL 8 to disable the use of user namespaces by adding the following line to a file in the "/etc/sysctl.d/" directory: user.max_user_namespaces = 0 The system configuration files need to be reloaded for the changes to take effect. To reload the contents of the files, run the following command: $ sudo sysctl --system The other mitigation for containers, if without disabling user namespaces, is blocking the pertinent syscalls in a seccomp policy file. For more information about seccomp, please read: https://www.openshift.com/blog/seccomp-for-fun-and-profit
Disable unprivileged user namespaces to restrict access to privileged users (have CAP_NET_ADMIN) via the kernel.unprivileged_userns_clone sysctl: $ sudo sysctl kernel.unprivileged_userns_clone=0
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(Appears in the following advisories)