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Ubuntu 16.04 LTS USN-7608-2 vulnerability: linux-fips service disruption

ubuntu
Calendar Grey July 2, 2025
Dist Ubuntu Esm H88
An update for Ubuntu 16.04 LTS resolves serious issues in the Linux kernel, remedying potential denial of service and various security vulnerabilities.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-fips: Linux kernel with FIPS

Details:

It was discovered that a use-after-free vulnerability existed in the

Bluetooth stack in the Linux kernel. A local attacker could use this to

cause a denial of service (system crash) or possibly execute arbitrary

code. (CVE-2022-3640)

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:

- SCSI subsystem;

- Network file system (NFS) client;

- NILFS2 file system;

- File systems infrastructure;

- Memory management;

- Bluetooth subsystem;

- Network traffic control;

- USB sound devices;

(CVE-2024-50116, CVE-2021-47576, CVE-2024-53197, CVE-2024-46787,

CVE-2025-37798, CVE-2024-49958, CVE-2021-47260, CVE-2025-37932,

CVE-2022-49909)

Topics%20covered

Topics Covered

security advisory denial of service security issue critical Ubuntu linux-fips

Update Instructions

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

Ubuntu 16.04 LTS
   linux-image-4.4.0-1115-fips     4.4.0-1115.122
                                   Available with Ubuntu Pro
   linux-image-fips                4.4.0.1115.116
                                   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-7607-2

https://ubuntu.com/security/notices/USN-7607-1

CVE-2021-47260, CVE-2021-47576, CVE-2022-3640, CVE-2022-49909,

CVE-2024-46787, CVE-2024-49958, CVE-2024-50116, CVE-2024-53197,

CVE-2025-37798, CVE-2025-37932

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7607-2

Topics%20covered

Topics Covered

security advisory denial of service security issue critical Ubuntu linux-fips

Package Information

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