Alerts This Week
Warning Icon 1 1,111
Alerts This Week
Warning Icon 1 1,111

Ubuntu 18.04 LTS: USN-7685-3 Linux Kernel FIPS Security Issues

ubuntu
Calendar Grey August 5, 2025
Dist Ubuntu Esm H88
Numerous security flaws identified in Ubuntu's Linux kernel can compromise system stability and efficiency. Ensure you update without delay.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

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

- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

- linux-fips: Linux kernel with FIPS

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

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:

- Device tree and open firmware driver;

- SCSI subsystem;

- TTY drivers;

- Ext4 file system;

- SMB network file system;

- Bluetooth subsystem;

- Network traffic control;

- Sun RPC protocol;

- USB sound devices;

(CVE-2023-52975, CVE-2024-56748, CVE-2023-52885, CVE-2025-37797,

CVE-2024-50073, CVE-2024-49950, CVE-2024-49883, CVE-2024-38541,

CVE-2023-52757, CVE-2024-53239)

Topics%20covered

Topics Covered

security advisory security issue Ubuntu fips system compromise Linux kernel

Update Instructions

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

Ubuntu 18.04 LTS
  linux-image-4.15.0-1138-fips    4.15.0-1138.149
                                  Available with Ubuntu Pro
  linux-image-4.15.0-2084-gcp-fips  4.15.0-2084.90
                                  Available with Ubuntu Pro
  linux-image-4.15.0-2100-azure-fips  4.15.0-2100.106
                                  Available with Ubuntu Pro
  linux-image-4.15.0-2121-aws-fips  4.15.0-2121.127
                                  Available with Ubuntu Pro
  linux-image-aws-fips            4.15.0.2121.115
                                  Available with Ubuntu Pro
  linux-image-aws-fips-4.15       4.15.0.2121.115
                                  Available with Ubuntu Pro
  linux-image-azure-fips          4.15.0.2100.96
                                  Available with Ubuntu Pro
  linux-image-azure-fips-4.15     4.15.0.2100.96
                                  Available with Ubuntu Pro
  linux-image-fips                4.15.0.1138.135
                                  Available with Ubuntu Pro
  linux-image-gcp-fips            4.15.0.2084.82
                                  Available with Ubuntu Pro
  linux-image-gcp-fips-4.15       4.15.0.2084.82
                                  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-7685-3

https://ubuntu.com/security/notices/USN-7685-2

https://ubuntu.com/security/notices/USN-7685-1

CVE-2023-52757, CVE-2023-52885, CVE-2023-52975, CVE-2024-38541,

CVE-2024-49883, CVE-2024-49950, CVE-2024-50073, CVE-2024-53239,

CVE-2024-56748, CVE-2025-37797

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7685-3

Topics%20covered

Topics Covered

security advisory security issue Ubuntu fips system compromise Linux kernel

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here