Ubuntu alert USN-8070-2 (linux-aws, linux-lts-xenial)

From:
             
 
Giampaolo Fresi Roglia <giampaolo.fresi.roglia@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8070-2] Linux kernel vulnerabilities
Date:
             
 
Wed, 04 Mar 2026 15:29:25 +0100
Message-ID:
             
 
<ap4oulcy1jis6y.fsf@canonical.com>
==========================================================================
Ubuntu Security Notice USN-8070-2
March 04, 2026

linux-aws, linux-lts-xenial vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- 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:
  - x86 architecture;
  - MMC subsystem;
  - Network drivers;
  - USB Device Class drivers;
  - BTRFS file system;
  - File systems infrastructure;
  - XFRM subsystem;
  - IPv4 networking;
  - IPv6 networking;
  - MAC80211 subsystem;
  - Simplified Mandatory Access Control Kernel framework;
(CVE-2021-47599, CVE-2022-48875, CVE-2022-49267, CVE-2024-47659,
CVE-2024-49927, CVE-2024-56548, CVE-2024-56593, CVE-2025-21704,
CVE-2025-40215)

Update instructions:

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

Ubuntu 14.04 LTS
  linux-image-4.4.0-1152-aws      4.4.0-1152.158
                                  Available with Ubuntu Pro
  linux-image-4.4.0-278-generic   4.4.0-278.312~14.04.1
                                  Available with Ubuntu Pro
  linux-image-4.4.0-278-lowlatency  4.4.0-278.312~14.04.1
                                  Available with Ubuntu Pro
  linux-image-aws                 4.4.0.1152.149
                                  Available with Ubuntu Pro
  linux-image-generic-lts-xenial  4.4.0.278.312~14.04.1
                                  Available with Ubuntu Pro
  linux-image-lowlatency-lts-xenial  4.4.0.278.312~14.04.1
                                  Available with Ubuntu Pro
  linux-image-virtual-lts-xenial  4.4.0.278.312~14.04.1
                                  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-8070-2
  https://ubuntu.com/security/notices/USN-8070-1
  CVE-2021-47599, CVE-2022-48875, CVE-2022-49267, CVE-2024-47659,
  CVE-2024-49927, CVE-2024-56548, CVE-2024-56593, CVE-2025-21704,
  CVE-2025-40215



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