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Ubuntu 16.04 LTS: Linux Kernel Critical Vulnerabilities USN-7727-1

ubuntu
Calendar Grey August 28, 2025
Dist Ubuntu Esm H88
Significant flaws addressed in the Ubuntu Linux kernel affecting multiple subsystems necessitating prompt updates.
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-kvm: Linux kernel for cloud environments

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

- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

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:

- InfiniBand drivers;

- Media drivers;

- SPI subsystem;

- USB core drivers;

- NILFS2 file system;

- IPv6 networking;

- Network traffic control;

(CVE-2024-50051, CVE-2025-37752, CVE-2024-53130, CVE-2024-47685,

CVE-2024-27074, CVE-2023-52477, CVE-2024-50202, CVE-2021-47345,

CVE-2024-57996, CVE-2024-53131)

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu vulnerability Linux kernel

Update Instructions

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

Ubuntu 16.04 LTS
   linux-image-4.4.0-1148-kvm      4.4.0-1148.159
                                   Available with Ubuntu Pro
   linux-image-4.4.0-272-generic   4.4.0-272.306
                                   Available with Ubuntu Pro
   linux-image-4.4.0-272-lowlatency  4.4.0-272.306
                                   Available with Ubuntu Pro
   linux-image-generic             4.4.0.272.278
                                   Available with Ubuntu Pro
   linux-image-generic-lts-xenial  4.4.0.272.278
                                   Available with Ubuntu Pro
   linux-image-kvm                 4.4.0.1148.145
                                   Available with Ubuntu Pro
   linux-image-lowlatency          4.4.0.272.278
                                   Available with Ubuntu Pro
   linux-image-lowlatency-lts-xenial  4.4.0.272.278
                                   Available with Ubuntu Pro
   linux-image-virtual             4.4.0.272.278
                                   Available with Ubuntu Pro
   linux-image-virtual-lts-xenial  4.4.0.272.278
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   linux-image-4.4.0-1147-aws      4.4.0-1147.153
                                   Available with Ubuntu Pro
   linux-image-4.4.0-272-generic   4.4.0-272.306~14.04.1
                                   Available with Ubuntu Pro
   linux-image-4.4.0-272-lowlatency  4.4.0-272.306~14.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 4.4.0.1147.144
                                   Available with Ubuntu Pro
   linux-image-generic-lts-xenial  4.4.0.272.306~14.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-lts-xenial  4.4.0.272.306~14.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-lts-xenial  4.4.0.272.306~14.04.1
                                   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-7727-1

CVE-2021-47345, CVE-2023-52477, CVE-2024-27074, CVE-2024-47685,

CVE-2024-50051, CVE-2024-50202, CVE-2024-53130, CVE-2024-53131,

CVE-2024-57996, CVE-2025-37752

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7727-1

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu vulnerability Linux kernel

Package Information

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