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9.1

CVE-2023-45896: Ubuntu 22.04 Linux kernel 5.15 can let attackers gain higher privileges

CVE-2023-45896 · published 8 days ago
Summary

The Linux kernel packages for Ubuntu 22.04 (including the AWS, Azure, Azure‑FDE, GCP, and HWE 5.15 flavors) contain a flaw that could allow a malicious user to increase their access rights on the system. This could let an attacker run code with more control than intended. Upgrade to the latest kernel version that includes the patch provided by the Ubuntu team.

What to do
  • Update canonical linux-aws-5.15 to version 5.15.0-1112.119~20.04.1.
  • Update canonical linux-azure-5.15 to version 5.15.0-1117.126~20.04.1.
  • Update canonical linux-azure-fde-5.15 to version 5.15.0-1117.126~20.04.2.
  • Update canonical linux-gcp-5.15 to version 5.15.0-1112.122~20.04.1.
  • Update canonical linux-hwe-5.15 to version 5.15.0-186.196~20.04.1.
  • Update canonical linux-ibm-5.15 to version 5.15.0-1106.110~20.04.1.
  • Update canonical linux-intel-iotg-5.15 to version 5.15.0-1107.113~20.04.1.
  • Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-184.194~20.04.1.
  • Update canonical linux-nvidia-tegra-5.15 to version 5.15.0-1064.66~20.04.1.
  • Update canonical linux-oracle-5.15 to version 5.15.0-1109.115~20.04.1.
  • Update canonical linux-riscv-5.15 to version 5.15.0-1106.110~20.04.1.
  • Update canonical linux to version 5.15.0-186.196.
  • Update canonical linux-aws to version 5.15.0-1112.119.
  • Update canonical linux-azure to version 5.15.0-1117.126.
  • Update canonical linux-azure-fde to version 5.15.0-1117.126.
  • Update canonical linux-gcp to version 5.15.0-1112.122.
  • Update canonical linux-gke to version 5.15.0-1108.114.
  • Update canonical linux-gkeop to version 5.15.0-1095.103.
  • Update canonical linux-ibm to version 5.15.0-1106.110.
  • Update canonical linux-intel-iotg to version 5.15.0-1107.113.
  • Update canonical linux-kvm to version 5.15.0-1104.109.
  • Update canonical linux-lowlatency to version 5.15.0-184.194.
  • Update canonical linux-nvidia to version 5.15.0-1107.108.
  • Update canonical linux-nvidia-tegra to version 5.15.0-1064.66.
  • Update canonical linux-nvidia-tegra-igx to version 5.15.0-1053.53.
  • Update canonical linux-oracle to version 5.15.0-1109.115.
  • Update canonical linux-xilinx-zynqmp to version 5.15.0-1075.79.
  • Update canonical linux-bluefield to version 5.15.0-1096.98.
  • Update canonical linux-aws-fips to version 5.15.0-1112.119+fips1.
  • Update canonical linux-azure-fips to version 5.15.0-1117.126+fips1.
  • Update canonical linux-fips to version 5.15.0-186.196+fips1.
  • Update canonical linux-gcp-fips to version 5.15.0-1112.122+fips1.
  • Update canonical linux-intel-iot-realtime to version 5.15.0-1104.106.
  • Update canonical linux-realtime to version 5.15.0-1111.120.
  • Update canonical linux-nvidia-6.5 to version 6.5.0-1014.14.
  • Update debian linux to version 6.1.115-1.
  • Update debian linux to version 6.5.13-1.
  • Update canonical linux-raspi to version 5.15.0-1106.109.
  • Update linux to version 5.15.0-198.208.aikido.116.
  • Update rootio-linux to version 5.15.0-198.208.aikido.116.
  • Update linux to version 5.15.0-202.212.aikido.118.
  • Update rootio-linux to version 5.15.0-202.212.aikido.118.
Affected software
Ecosystem VendorProductAffected versions
Ubuntu:Pro:20.04:LTS canonical linux-aws-5.15 < 5.15.0-1112.119~20.04.1
Fix: upgrade to 5.15.0-1112.119~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-azure-5.15 < 5.15.0-1117.126~20.04.1
Fix: upgrade to 5.15.0-1117.126~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-azure-fde-5.15 < 5.15.0-1117.126~20.04.2
Fix: upgrade to 5.15.0-1117.126~20.04.2
Ubuntu:Pro:20.04:LTS canonical linux-gcp-5.15 < 5.15.0-1112.122~20.04.1
Fix: upgrade to 5.15.0-1112.122~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-hwe-5.15 < 5.15.0-186.196~20.04.1
Fix: upgrade to 5.15.0-186.196~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-ibm-5.15 < 5.15.0-1106.110~20.04.1
Fix: upgrade to 5.15.0-1106.110~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-intel-iotg-5.15 < 5.15.0-1107.113~20.04.1
Fix: upgrade to 5.15.0-1107.113~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-lowlatency-hwe-5.15 < 5.15.0-184.194~20.04.1
Fix: upgrade to 5.15.0-184.194~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-nvidia-tegra-5.15 < 5.15.0-1064.66~20.04.1
Fix: upgrade to 5.15.0-1064.66~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-oracle-5.15 < 5.15.0-1109.115~20.04.1
Fix: upgrade to 5.15.0-1109.115~20.04.1
Ubuntu:Pro:20.04:LTS canonical linux-riscv-5.15 < 5.15.0-1106.110~20.04.1
Fix: upgrade to 5.15.0-1106.110~20.04.1
Ubuntu:22.04:LTS canonical linux < 5.15.0-186.196
Fix: upgrade to 5.15.0-186.196
Ubuntu:22.04:LTS canonical linux-aws < 5.15.0-1112.119
Fix: upgrade to 5.15.0-1112.119
Ubuntu:22.04:LTS canonical linux-azure < 5.15.0-1117.126
Fix: upgrade to 5.15.0-1117.126
Ubuntu:22.04:LTS canonical linux-azure-fde < 5.15.0-1117.126
Fix: upgrade to 5.15.0-1117.126
Ubuntu:22.04:LTS canonical linux-gcp < 5.15.0-1112.122
Fix: upgrade to 5.15.0-1112.122
Ubuntu:22.04:LTS canonical linux-gke < 5.15.0-1108.114
Fix: upgrade to 5.15.0-1108.114
Ubuntu:22.04:LTS canonical linux-gkeop < 5.15.0-1095.103
Fix: upgrade to 5.15.0-1095.103
Ubuntu:22.04:LTS canonical linux-ibm < 5.15.0-1106.110
Fix: upgrade to 5.15.0-1106.110
Ubuntu:22.04:LTS canonical linux-intel-iotg < 5.15.0-1107.113
Fix: upgrade to 5.15.0-1107.113
Ubuntu:22.04:LTS canonical linux-kvm < 5.15.0-1104.109
Fix: upgrade to 5.15.0-1104.109
Ubuntu:22.04:LTS canonical linux-lowlatency < 5.15.0-184.194
Fix: upgrade to 5.15.0-184.194
Ubuntu:22.04:LTS canonical linux-nvidia < 5.15.0-1107.108
Fix: upgrade to 5.15.0-1107.108
Ubuntu:22.04:LTS canonical linux-nvidia-tegra < 5.15.0-1064.66
Fix: upgrade to 5.15.0-1064.66
Ubuntu:22.04:LTS canonical linux-nvidia-tegra-igx < 5.15.0-1053.53
Fix: upgrade to 5.15.0-1053.53
Ubuntu:22.04:LTS canonical linux-oracle < 5.15.0-1109.115
Fix: upgrade to 5.15.0-1109.115
Ubuntu:22.04:LTS canonical linux-xilinx-zynqmp < 5.15.0-1075.79
Fix: upgrade to 5.15.0-1075.79
Ubuntu:Nvidia-BlueField:22.04:LTS canonical linux-bluefield < 5.15.0-1096.98
Fix: upgrade to 5.15.0-1096.98
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-aws-fips < 5.15.0-1112.119+fips1
Fix: upgrade to 5.15.0-1112.119+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-azure-fips < 5.15.0-1117.126+fips1
Fix: upgrade to 5.15.0-1117.126+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-fips < 5.15.0-186.196+fips1
Fix: upgrade to 5.15.0-186.196+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-gcp-fips < 5.15.0-1112.122+fips1
Fix: upgrade to 5.15.0-1112.122+fips1
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-intel-iot-realtime < 5.15.0-1104.106
Fix: upgrade to 5.15.0-1104.106
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-realtime < 5.15.0-1111.120
Fix: upgrade to 5.15.0-1111.120
Ubuntu:Pro:14.04:LTS canonical linux All versions
Ubuntu:Pro:14.04:LTS canonical linux-aws All versions
Ubuntu:Pro:14.04:LTS canonical linux-azure All versions
Ubuntu:Pro:14.04:LTS canonical linux-lts-xenial All versions
Ubuntu:Pro:16.04:LTS canonical linux All versions
Ubuntu:Pro:16.04:LTS canonical linux-aws All versions
Ubuntu:Pro:16.04:LTS canonical linux-aws-hwe All versions
Ubuntu:Pro:16.04:LTS canonical linux-azure All versions
Ubuntu:Pro:16.04:LTS canonical linux-gcp All versions
Ubuntu:Pro:16.04:LTS canonical linux-hwe All versions
Ubuntu:16.04:LTS canonical linux-hwe-edge All versions
Ubuntu:Pro:16.04:LTS canonical linux-kvm All versions
Ubuntu:Pro:16.04:LTS canonical linux-oracle All versions
Ubuntu:Pro:FIPS:16.04:LTS canonical linux-fips All versions
Ubuntu:Pro:18.04:LTS canonical linux All versions
Ubuntu:Pro:18.04:LTS canonical linux-aws All versions
Showing 50 of 177. Show the rest
Ecosystem VendorProductAffected versions
Ubuntu:18.04:LTS canonical linux-aws-5.0 All versions
Ubuntu:18.04:LTS canonical linux-aws-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-aws-5.4 All versions
Ubuntu:18.04:LTS canonical linux-azure All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-4.15 All versions
Ubuntu:18.04:LTS canonical linux-azure-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-5.4 All versions
Ubuntu:18.04:LTS canonical linux-azure-edge All versions
Ubuntu:18.04:LTS canonical linux-gcp All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gcp-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-5.4 All versions
Ubuntu:18.04:LTS canonical linux-gke-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gke-5.4 All versions
Ubuntu:18.04:LTS canonical linux-gkeop-5.4 All versions
Ubuntu:18.04:LTS canonical linux-hwe All versions
Ubuntu:Pro:18.04:LTS canonical linux-hwe-5.4 All versions
Ubuntu:18.04:LTS canonical linux-hwe-edge All versions
Ubuntu:Pro:18.04:LTS canonical linux-ibm-5.4 All versions
Ubuntu:Pro:18.04:LTS canonical linux-kvm All versions
Ubuntu:18.04:LTS canonical linux-oem All versions
Ubuntu:Pro:18.04:LTS canonical linux-oracle All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.0 All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-oracle-5.4 All versions
Ubuntu:Pro:18.04:LTS canonical linux-raspi-5.4 All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:20.04:LTS canonical linux All versions
Ubuntu:Pro:20.04:LTS canonical linux-aws All versions
Ubuntu:20.04:LTS canonical linux-aws-5.11 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.13 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.8 All versions
Ubuntu:Pro:20.04:LTS canonical linux-azure All versions
Ubuntu:20.04:LTS canonical linux-azure-5.11 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.13 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-fde All versions
Ubuntu:Pro:20.04:LTS canonical linux-bluefield All versions
Ubuntu:Pro:20.04:LTS canonical linux-gcp All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.11 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.13 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.8 All versions
Ubuntu:20.04:LTS canonical linux-gke All versions
Ubuntu:20.04:LTS canonical linux-gke-5.15 All versions
Ubuntu:20.04:LTS canonical linux-gkeop All versions
Ubuntu:20.04:LTS canonical linux-gkeop-5.15 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.11 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.13 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.8 All versions
Ubuntu:Pro:20.04:LTS canonical linux-ibm All versions
Ubuntu:20.04:LTS canonical linux-intel-5.13 All versions
Ubuntu:Pro:20.04:LTS canonical linux-iot All versions
Ubuntu:Pro:20.04:LTS canonical linux-kvm All versions
Ubuntu:20.04:LTS canonical linux-oem-5.10 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.14 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.6 All versions
Ubuntu:Pro:20.04:LTS canonical linux-oracle All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.11 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.8 All versions
Ubuntu:Pro:20.04:LTS canonical linux-raspi All versions
Ubuntu:20.04:LTS canonical linux-raspi2 All versions
Ubuntu:20.04:LTS canonical linux-riscv All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.11 All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.8 All versions
Ubuntu:Pro:20.04:LTS canonical linux-xilinx-zynqmp All versions
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-gcp-fips All versions
Ubuntu:22.04:LTS canonical linux-allwinner-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.2 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.8 All versions
Ubuntu:22.04:LTS canonical linux-gcp-5.19 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.2 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.5 All versions
Ubuntu:22.04:LTS canonical linux-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-intel-iot-realtime All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.2 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.5 < 6.5.0-1014.14
Fix: upgrade to 6.5.0-1014.14
Ubuntu:22.04:LTS canonical linux-oem-5.17 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.0 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.1 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle-6.5 All versions
Ubuntu:22.04:LTS canonical linux-raspi < 5.15.0-1106.109
Fix: upgrade to 5.15.0-1106.109
Ubuntu:22.04:LTS canonical linux-realtime All versions
Ubuntu:22.04:LTS canonical linux-riscv All versions
Ubuntu:22.04:LTS canonical linux-riscv-5.19 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.5 All versions
Ubuntu:22.04:LTS canonical linux-starfive-5.19 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.2 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.5 All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-gcp-fips All versions
Ubuntu:24.04:LTS canonical linux-azure-fde All versions
Ubuntu:24.04:LTS canonical linux-raspi-realtime All versions
Debian:12 debian linux < 6.1.115-1
Fix: upgrade to 6.1.115-1
Debian:13 debian linux < 6.5.13-1
Fix: upgrade to 6.5.13-1
Root:Ubuntu:22.04 – linux < 5.15.0-198.208.aikido.116
< 5.15.0-202.212.aikido.118
Fix: upgrade to 5.15.0-198.208.aikido.116
Root:Ubuntu:22.04 – rootio-linux < 5.15.0-198.208.aikido.116
< 5.15.0-202.212.aikido.118
Fix: upgrade to 5.15.0-198.208.aikido.116
Original advisory text
CVE-2023-45896 in linux - Patched by Root
Root has patched CVE-2023-45896 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
9.1 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-276Incorrect Default Permissions
Timeline
Published30 Oct 2026
Updated30 Oct 2026
First seen7 Mar 2026
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