[USN-7495-1] Linux kernel vulnerabilities

[Giampaolo Fresi Roglia]

==========================================================================
Ubuntu Security Notice USN-7495-1
May 06, 2025

linux, linux-aws, linux-aws-5.4, linux-azure-5.4, linux-gcp,
linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle,
linux-oracle-5.4 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

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, CVE-2024-26689)

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.

References:
  https://ubuntu.com/security/notices/USN-7495-1
  CVE-2023-52664, CVE-2023-52927, CVE-2024-26689

Package Information:
  https://launchpad.net/ubuntu/+source/linux/5.4.0-215.235
  https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1145.155
  https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1148.157
  https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1091.96
  https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1132.141
  https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1143.153

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 710 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20250506/d505755e/attachment-0001.sig>