========================================================================== 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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