Ubuntu 20.04 & 18.04: USN-7495-1 moderate: Linux Kernel Security Issues

ubuntu

May 6, 2025

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-ibm: Linux kernel for IBM cloud systems

- linux-kvm: Linux kernel for cloud environments

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems

- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems

- linux-hwe-5.4: Linux hardware enablement (HWE) kernel

- linux-oracle-5.4: Linux kernel for Oracle Cloud systems

Details:

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the system.

This update corrects flaws in the following subsystems:

- Network drivers;

- Ceph distributed file system;

- Netfilter;

(CVE-2023-52927, CVE-2023-52664, CV...

Read the Full Advisory

Topics Covered

security advisory security issue Ubuntu system update linux kernel cloud environments

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
  linux-image-5.4.0-1091-ibm      5.4.0-1091.96
  linux-image-5.4.0-1132-kvm      5.4.0-1132.141
  linux-image-5.4.0-1143-oracle   5.4.0-1143.153
  linux-image-5.4.0-1145-aws      5.4.0-1145.155
  linux-image-5.4.0-1148-gcp      5.4.0-1148.157
  linux-image-5.4.0-215-generic   5.4.0-215.235
  linux-image-5.4.0-215-generic-lpae  5.4.0-215.235
  linux-image-5.4.0-215-lowlatency  5.4.0-215.235
  linux-image-aws-lts-20.04       5.4.0.1145.142
  linux-image-gcp-lts-20.04       5.4.0.1148.150
  linux-image-generic             5.4.0.215.208
  linux-image-generic-lpae        5.4.0.215.208
  linux-image-ibm-lts-20.04       5.4.0.1091.120
  linux-image-kvm                 5.4.0.1132.128
  linux-image-lowlatency          5.4.0.215.208
  linux-image-oem                 5.4.0.215.208
  linux-image-oem-osp1            5.4.0.215.208
  linux-image-oracle-lts-20.04    5.4.0.1143.137
  linux-image-virtual             5.4.0.215.208

Ubuntu 18.04 LTS
  linux-image-5.4.0-1143-oracle   5.4.0-1143.153~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1145-aws      5.4.0-1145.155~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1148-gcp      5.4.0-1148.157~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-1150-azure    5.4.0-1150.157~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-215-generic   5.4.0-215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-5.4.0-215-lowlatency  5.4.0-215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 5.4.0.1145.155~18.04.1
                                  Available with Ubuntu Pro
  linux-image-azure               5.4.0.1150.157~18.04.1
                                  Available with Ubuntu Pro
  linux-image-gcp                 5.4.0.1148.157~18.04.1
                                  Available with Ubuntu Pro
  linux-image-generic-hwe-18.04   5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-hwe-18.04  5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-oem                 5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-oem-osp1            5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-oracle              5.4.0.1143.153~18.04.1
                                  Available with Ubuntu Pro
  linux-image-snapdragon-hwe-18.04  5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-hwe-18.04   5.4.0.215.235~18.04.1
                                  Available with Ubuntu Pro

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.