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Ubuntu 16.04 LTS: USN-7429-1 critical: multiple Linux kernel flaws

ubuntu
Calendar Grey April 9, 2025
Dist Ubuntu Esm H88
Recent Linux kernel updates for Ubuntu 14.04 and 16.04 have resolved numerous security vulnerabilities, significantly bolstering system defenses.
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-kvm: Linux kernel for cloud environments

- 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:

- Drivers core;

- HID subsystem;

- Network drivers;

- SCSI subsystem;

- SuperH / SH-Mobile drivers;

- File systems infrastructure;

- Ext4 file system;

- JFS file system;

- Network file system (NFS) client;

- Memory management;

- Network namespace;

- CAIF protocol;

- Networking core;

- HSR network protocol;

- IPv4 networking;

- IPv6 networking;

- MAC80211 subsystem;

- Network traffic control;

(CVE-2025-21702, CVE-2024-53227, C...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical software update ubuntu network threat linux kernel

Update Instructions

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

Ubuntu 16.04 LTS
   linux-image-4.4.0-1143-kvm      4.4.0-1143.154
                                   Available with Ubuntu Pro
   linux-image-4.4.0-1180-aws      4.4.0-1180.195
                                   Available with Ubuntu Pro
   linux-image-4.4.0-267-generic   4.4.0-267.301
                                   Available with Ubuntu Pro
   linux-image-4.4.0-267-lowlatency  4.4.0-267.301
                                   Available with Ubuntu Pro
   linux-image-aws                 4.4.0.1180.184
                                   Available with Ubuntu Pro
   linux-image-generic             4.4.0.267.273
                                   Available with Ubuntu Pro
   linux-image-generic-lts-xenial  4.4.0.267.273
                                   Available with Ubuntu Pro
   linux-image-kvm                 4.4.0.1143.140
                                   Available with Ubuntu Pro
   linux-image-lowlatency          4.4.0.267.273
                                   Available with Ubuntu Pro
   linux-image-lowlatency-lts-xenial  4.4.0.267.273
                                   Available with Ubuntu Pro
   linux-image-virtual             4.4.0.267.273
                                   Available with Ubuntu Pro
   linux-image-virtual-lts-xenial  4.4.0.267.273
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   linux-image-4.4.0-1142-aws      4.4.0-1142.148
                                   Available with Ubuntu Pro
   linux-image-4.4.0-267-generic   4.4.0-267.301~14.04.1
                                   Available with Ubuntu Pro
   linux-image-4.4.0-267-lowlatency  4.4.0-267.301~14.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 4.4.0.1142.139
                                   Available with Ubuntu Pro
   linux-image-generic-lts-xenial  4.4.0.267.301~14.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-lts-xenial  4.4.0.267.301~14.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-lts-xenial  4.4.0.267.301~14.04.1
                                   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-7429-1

CVE-2021-47119, CVE-2021-47122, CVE-2021-47235, CVE-2021-47320,

CVE-2021-47483, CVE-2021-47602, CVE-2024-26863, CVE-2024-26921,

CVE-2024-46826, CVE-2024-49948, CVE-2024-49952, CVE-2024-50167,

CVE-2024-50265, CVE-2024-50302, CVE-2024-53165, CVE-2024-53227,

CVE-2024-56595, CVE-2024-56600, CVE-2024-56658, CVE-2025-21700,

CVE-2025-21702

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7429-1

Topics%20covered

Topics Covered

security advisory critical software update ubuntu network threat linux kernel

Package Information

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