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Ubuntu: (Multiple Advisories) (CVE-2023-1076): Linux kernel (OEM) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2023-1076): Linux kernel (OEM) vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/27/2023
Created
05/05/2023
Added
04/21/2023
Modified
09/20/2023

Description

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters.

Solution(s)

  • ubuntu-upgrade-linux-image-5-15-0-1022-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1032-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1032-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1032-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-15-0-1033-intel-iotg
  • ubuntu-upgrade-linux-image-5-15-0-1035-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1036-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1036-gke
  • ubuntu-upgrade-linux-image-5-15-0-1037-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1038-aws
  • ubuntu-upgrade-linux-image-5-15-0-1040-azure
  • ubuntu-upgrade-linux-image-5-15-0-1040-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-1041-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-75-generic
  • ubuntu-upgrade-linux-image-5-15-0-75-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-75-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-75-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-75-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-19-0-1021-raspi
  • ubuntu-upgrade-linux-image-5-19-0-1021-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-19-0-1024-ibm
  • ubuntu-upgrade-linux-image-5-19-0-1025-kvm
  • ubuntu-upgrade-linux-image-5-19-0-1025-oracle
  • ubuntu-upgrade-linux-image-5-19-0-1026-gcp
  • ubuntu-upgrade-linux-image-5-19-0-1027-aws
  • ubuntu-upgrade-linux-image-5-19-0-1027-lowlatency
  • ubuntu-upgrade-linux-image-5-19-0-1027-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-19-0-1028-azure
  • ubuntu-upgrade-linux-image-5-19-0-45-generic
  • ubuntu-upgrade-linux-image-5-19-0-45-generic-64k
  • ubuntu-upgrade-linux-image-5-19-0-45-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-1017-iot
  • ubuntu-upgrade-linux-image-5-4-0-1024-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-4-0-1051-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1065-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1071-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1088-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1093-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1102-gke
  • ubuntu-upgrade-linux-image-5-4-0-1103-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1104-aws
  • ubuntu-upgrade-linux-image-5-4-0-1107-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1110-azure
  • ubuntu-upgrade-linux-image-5-4-0-152-generic
  • ubuntu-upgrade-linux-image-5-4-0-152-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-152-lowlatency
  • ubuntu-upgrade-linux-image-6-0-0-1021-oem
  • ubuntu-upgrade-linux-image-6-1-0-1009-oem
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-cvm
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-fde-lts-22-04
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-bluefield
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-gcp-lts-22-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-22-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-intel
  • ubuntu-upgrade-linux-image-intel-iotg
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oem-22-04b
  • ubuntu-upgrade-linux-image-oem-22-04c
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-hwe-22-04
  • ubuntu-upgrade-linux-image-xilinx-zynqmp

References

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