high
7.8
CWE
787
Advisory Published
Advisory Published
Updated

CVE-2023-35001: (Pwn2Own) Linux Kernel nftables Incorrect Pointer Scaling Local Privilege Escalation Vulnerability

First published: Wed Jul 05 2023(Updated: )

Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register contents when CAP_NET_ADMIN is in any user or network namespace

Credit: security@ubuntu.com security@ubuntu.com security@ubuntu.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel=3.13-rc1
Debian Debian Linux=11.0
Fedoraproject Fedora=37
Fedoraproject Fedora=38
Linux kernel
ubuntu/linux<4.15.0-214.225
4.15.0-214.225
ubuntu/linux<5.4.0-155.172
5.4.0-155.172
ubuntu/linux<5.15.0-78.85
5.15.0-78.85
ubuntu/linux<6.2.0-26.26
6.2.0-26.26
ubuntu/linux<3.13.0-194.245
3.13.0-194.245
ubuntu/linux<6.5~
6.5~
ubuntu/linux<4.4.0-243.277
4.4.0-243.277
ubuntu/linux-aws<4.15.0-1159.172
4.15.0-1159.172
ubuntu/linux-aws<5.4.0-1106.114
5.4.0-1106.114
ubuntu/linux-aws<5.15.0-1040.45
5.15.0-1040.45
ubuntu/linux-aws<6.2.0-1008.8
6.2.0-1008.8
ubuntu/linux-aws<4.4.0-1121.127
4.4.0-1121.127
ubuntu/linux-aws<6.5~
6.5~
ubuntu/linux-aws<4.4.0-1159.174
4.4.0-1159.174
ubuntu/linux-aws-5.0<6.5~
6.5~
ubuntu/linux-aws-5.15<5.15.0-1040.45~20.04.1
5.15.0-1040.45~20.04.1
ubuntu/linux-aws-5.15<6.5~
6.5~
ubuntu/linux-aws-5.19<5.19.0-1029.30~22.04.1
5.19.0-1029.30~22.04.1
ubuntu/linux-aws-5.19<6.5~
6.5~
ubuntu/linux-aws-5.4<5.4.0-1106.114~18.04.1
5.4.0-1106.114~18.04.1
ubuntu/linux-aws-5.4<6.5~
6.5~
ubuntu/linux-aws-6.2<6.5~
6.5~
ubuntu/linux-aws-hwe<6.5~
6.5~
ubuntu/linux-aws-hwe<4.15.0-1159.172~16.04.1
4.15.0-1159.172~16.04.1
ubuntu/linux-azure<5.4.0-1112.118
5.4.0-1112.118
ubuntu/linux-azure<5.15.0-1042.49
5.15.0-1042.49
ubuntu/linux-azure<6.2.0-1008.8
6.2.0-1008.8
ubuntu/linux-azure<4.15.0-1168.183~14.04.1
4.15.0-1168.183~14.04.1
ubuntu/linux-azure<6.5~
6.5~
ubuntu/linux-azure<4.15.0-1168.183~16.04.1
4.15.0-1168.183~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1168.183
4.15.0-1168.183
ubuntu/linux-azure-4.15<6.5~
6.5~
ubuntu/linux-azure-5.15<5.15.0-1042.49~20.04.1
5.15.0-1042.49~20.04.1
ubuntu/linux-azure-5.15<6.5~
6.5~
ubuntu/linux-azure-5.4<5.4.0-1112.118~18.04.1
5.4.0-1112.118~18.04.1
ubuntu/linux-azure-5.4<6.5~
6.5~
ubuntu/linux-azure-6.2<6.5~
6.5~
ubuntu/linux-azure-edge<6.5~
6.5~
ubuntu/linux-azure-fde<5.15.0-1042.49
5.15.0-1042.49
ubuntu/linux-azure-fde<6.5~
6.5~
ubuntu/linux-azure-fde-5.15<5.15.0-1042.49~20.04.1
5.15.0-1042.49~20.04.1
ubuntu/linux-azure-fde-5.15<6.5~
6.5~
ubuntu/linux-azure-fde-5.19<6.5~
6.5~
ubuntu/linux-azure-fde-6.2<6.5~
6.5~
ubuntu/linux-bluefield<5.4.0-1068.74
5.4.0-1068.74
ubuntu/linux-bluefield<6.5~
6.5~
ubuntu/linux-dell300x<6.5~
6.5~
ubuntu/linux-fips<6.5~
6.5~
ubuntu/linux-gcp<5.4.0-1109.118
5.4.0-1109.118
ubuntu/linux-gcp<5.15.0-1038.46
5.15.0-1038.46
ubuntu/linux-gcp<6.2.0-1010.10
6.2.0-1010.10
ubuntu/linux-gcp<6.5~
6.5~
ubuntu/linux-gcp<4.15.0-1153.170~16.04.1
4.15.0-1153.170~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1153.170
4.15.0-1153.170
ubuntu/linux-gcp-4.15<6.5~
6.5~
ubuntu/linux-gcp-5.15<5.15.0-1038.46~20.04.1
5.15.0-1038.46~20.04.1
ubuntu/linux-gcp-5.15<6.5~
6.5~
ubuntu/linux-gcp-5.19<5.19.0-1030.32~22.04.1
5.19.0-1030.32~22.04.1
ubuntu/linux-gcp-5.19<6.5~
6.5~
ubuntu/linux-gcp-5.4<5.4.0-1109.118~18.04.1
5.4.0-1109.118~18.04.1
ubuntu/linux-gcp-5.4<6.5~
6.5~
ubuntu/linux-gke<5.4.0-1104.111
5.4.0-1104.111
ubuntu/linux-gke<5.15.0-1038.43
5.15.0-1038.43
ubuntu/linux-gke<6.5~
6.5~
ubuntu/linux-gke-4.15<6.5~
6.5~
ubuntu/linux-gke-5.0<6.5~
6.5~
ubuntu/linux-gke-5.15<5.15.0-1038.43~20.04.1
5.15.0-1038.43~20.04.1
ubuntu/linux-gke-5.15<6.5~
6.5~
ubuntu/linux-gke-5.4<6.5~
6.5~
ubuntu/linux-gkeop<5.4.0-1073.77
5.4.0-1073.77
ubuntu/linux-gkeop<5.15.0-1024.29
5.15.0-1024.29
ubuntu/linux-gkeop<6.5~
6.5~
ubuntu/linux-gkeop-5.15<5.15.0-1024.29~20.04.1
5.15.0-1024.29~20.04.1
ubuntu/linux-gkeop-5.15<6.5~
6.5~
ubuntu/linux-gkeop-5.4<6.5~
6.5~
ubuntu/linux-hwe<6.5~
6.5~
ubuntu/linux-hwe<4.15.0-214.225~16.04.1
4.15.0-214.225~16.04.1
ubuntu/linux-hwe-5.15<5.15.0-78.85~20.04.1
5.15.0-78.85~20.04.1
ubuntu/linux-hwe-5.15<6.5~
6.5~
ubuntu/linux-hwe-5.19<5.19.0-50.50
5.19.0-50.50
ubuntu/linux-hwe-5.4<5.4.0-155.172~18.04.1
5.4.0-155.172~18.04.1
ubuntu/linux-hwe-5.4<6.5~
6.5~
ubuntu/linux-hwe-6.2<6.2.0-26.26~22.04.1
6.2.0-26.26~22.04.1
ubuntu/linux-hwe-6.2<6.5~
6.5~
ubuntu/linux-hwe-edge<6.5~
6.5~
ubuntu/linux-ibm<5.4.0-1053.58
5.4.0-1053.58
ubuntu/linux-ibm<5.15.0-1034.37
5.15.0-1034.37
ubuntu/linux-ibm<6.2.0-1006.6
6.2.0-1006.6
ubuntu/linux-ibm<6.5~
6.5~
ubuntu/linux-ibm-5.15<5.15.0-1034.37~20.04.1
5.15.0-1034.37~20.04.1
ubuntu/linux-ibm-5.15<6.5~
6.5~
ubuntu/linux-ibm-5.4<5.4.0-1053.58~18.04.1
5.4.0-1053.58~18.04.1
ubuntu/linux-ibm-5.4<6.5~
6.5~
ubuntu/linux-intel-5.13<6.5~
6.5~
ubuntu/linux-intel-iotg<5.15.0-1036.41
5.15.0-1036.41
ubuntu/linux-intel-iotg<6.5~
6.5~
ubuntu/linux-intel-iotg-5.15<5.15.0-1036.41~20.04.1
5.15.0-1036.41~20.04.1
ubuntu/linux-intel-iotg-5.15<6.5~
6.5~
ubuntu/linux-iot<5.4.0-1018.19
5.4.0-1018.19
ubuntu/linux-iot<6.5~
6.5~
ubuntu/linux-kvm<4.15.0-1143.148
4.15.0-1143.148
ubuntu/linux-kvm<5.4.0-1095.101
5.4.0-1095.101
ubuntu/linux-kvm<5.15.0-1038.43
5.15.0-1038.43
ubuntu/linux-kvm<6.2.0-1009.9
6.2.0-1009.9
ubuntu/linux-kvm<6.5~
6.5~
ubuntu/linux-kvm<4.4.0-1122.132
4.4.0-1122.132
ubuntu/linux-lowlatency<5.15.0-78.85
5.15.0-78.85
ubuntu/linux-lowlatency<6.2.0-1009.9
6.2.0-1009.9
ubuntu/linux-lowlatency<6.5~
6.5~
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-78.85~20.04.1
5.15.0-78.85~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.5~
6.5~
ubuntu/linux-lowlatency-hwe-5.19<6.5~
6.5~
ubuntu/linux-lowlatency-hwe-6.2<6.5~
6.5~
ubuntu/linux-lts-xenial<4.4.0-243.277~14.04.1
4.4.0-243.277~14.04.1
ubuntu/linux-lts-xenial<6.5~
6.5~
ubuntu/linux-nvidia<5.15.0-1029.29
5.15.0-1029.29
ubuntu/linux-nvidia<6.5~
6.5~
ubuntu/linux-nvidia-6.2<6.5~
6.5~
ubuntu/linux-oem<6.5~
6.5~
ubuntu/linux-oem-5.10<6.5~
6.5~
ubuntu/linux-oem-5.14<6.5~
6.5~
ubuntu/linux-oem-5.17<5.17.0-1035.36
5.17.0-1035.36
ubuntu/linux-oem-5.17<6.5~
6.5~
ubuntu/linux-oem-5.6<6.5~
6.5~
ubuntu/linux-oem-6.0<6.0.0-1020.20
6.0.0-1020.20
ubuntu/linux-oem-6.0<6.5~
6.5~
ubuntu/linux-oem-6.1<6.1.0-1019.19
6.1.0-1019.19
ubuntu/linux-oem-6.1<6.5~
6.5~
ubuntu/linux-oem-osp1<6.5~
6.5~
ubuntu/linux-oracle<4.15.0-1122.133
4.15.0-1122.133
ubuntu/linux-oracle<5.4.0-1105.114
5.4.0-1105.114
ubuntu/linux-oracle<5.15.0-1039.45
5.15.0-1039.45
ubuntu/linux-oracle<6.2.0-1008.8
6.2.0-1008.8
ubuntu/linux-oracle<6.5~
6.5~
ubuntu/linux-oracle<4.15.0-1122.133~16.04.1
4.15.0-1122.133~16.04.1
ubuntu/linux-oracle-5.0<6.5~
6.5~
ubuntu/linux-oracle-5.13<6.5~
6.5~
ubuntu/linux-oracle-5.15<5.15.0-1039.45~20.04.1
5.15.0-1039.45~20.04.1
ubuntu/linux-oracle-5.15<6.5~
6.5~
ubuntu/linux-oracle-5.4<5.4.0-1105.114~18.04.1
5.4.0-1105.114~18.04.1
ubuntu/linux-oracle-5.4<6.5~
6.5~
ubuntu/linux-raspi<5.4.0-1090.101
5.4.0-1090.101
ubuntu/linux-raspi<5.15.0-1034.37
5.15.0-1034.37
ubuntu/linux-raspi<6.2.0-1009.11
6.2.0-1009.11
ubuntu/linux-raspi<6.5~
6.5~
ubuntu/linux-raspi-5.4<5.4.0-1090.101~18.04.1
5.4.0-1090.101~18.04.1
ubuntu/linux-raspi-5.4<6.5~
6.5~
ubuntu/linux-raspi2<6.5~
6.5~
ubuntu/linux-riscv<6.5~
6.5~
ubuntu/linux-riscv-5.15<5.15.0-1037.41~20.04.2
5.15.0-1037.41~20.04.2
ubuntu/linux-riscv-5.15<6.5~
6.5~
ubuntu/linux-snapdragon<6.5~
6.5~
ubuntu/linux-starfive-6.2<6.5~
6.5~
ubuntu/linux-xilinx-zynqmp<5.4.0-1026.30
5.4.0-1026.30
ubuntu/linux-xilinx-zynqmp<5.15.0-1025.29
5.15.0-1025.29
ubuntu/linux-xilinx-zynqmp<6.5~
6.5~
Linux Linux kernel>=3.13<4.14.322
Linux Linux kernel>=4.15<=4.19.291
Linux Linux kernel>=4.20<5.4.251
Linux Linux kernel>=5.5<5.10.188
Linux Linux kernel>=5.11<5.15.121
Linux Linux kernel>=5.16<6.1.39
Linux Linux kernel>=6.2<6.4.4
Netapp H300s
Netapp H410c
Netapp H410s
Netapp H500s
Netapp H700s
debian/linux<=4.19.249-2
4.19.304-1
5.10.209-2
5.10.216-1
6.1.76-1
6.1.90-1
6.7.12-1
debian/linux-5.10
5.10.216-1~deb10u1

Remedy

https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html

Remedy

https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/

Remedy

If not needed, disable the ability for unprivileged users to create namespaces. To do this temporarily, do: sudo sysctl -w kernel.unprivileged_userns_clone=0 To disable across reboots, do: echo kernel.unprivileged_userns_clone=0 | \ sudo tee /etc/sysctl.d/99-disable-unpriv-userns.conf

Remedy

https://git.kernel.org/linus/96518518cc417bb0a8c80b9fb736202e28acdf96

Remedy

https://git.kernel.org/linus/caf3ef7468f7534771b5c44cd8dbd6f7f87c2cbd

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Reference Links

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