Home / mailings [USN-7684-1] Linux kernel vulnerabilities
Posted on 31 July 2025
Ubuntu Security==========================================================================Ubuntu Security Notice USN-7684-1
July 31, 2025
linux, linux-aws, linux-kvm vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
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
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:
- SCSI subsystem;
- TTY drivers;
- Ext4 file system;
- Bluetooth subsystem;
- USB sound devices;
(CVE-2023-52975, CVE-2024-53239, CVE-2024-49883, CVE-2024-50073,
CVE-2024-49950)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS
linux-image-4.4.0-1147-kvm 4.4.0-1147.158
Available with Ubuntu Pro
linux-image-4.4.0-1184-aws 4.4.0-1184.199
Available with Ubuntu Pro
linux-image-4.4.0-271-generic 4.4.0-271.305
Available with Ubuntu Pro
linux-image-4.4.0-271-lowlatency 4.4.0-271.305
Available with Ubuntu Pro
linux-image-aws 4.4.0.1184.188
Available with Ubuntu Pro
linux-image-generic 4.4.0.271.277
Available with Ubuntu Pro
linux-image-generic-lts-xenial 4.4.0.271.277
Available with Ubuntu Pro
linux-image-kvm 4.4.0.1147.144
Available with Ubuntu Pro
linux-image-lowlatency 4.4.0.271.277
Available with Ubuntu Pro
linux-image-lowlatency-lts-xenial 4.4.0.271.277
Available with Ubuntu Pro
linux-image-virtual 4.4.0.271.277
Available with Ubuntu Pro
linux-image-virtual-lts-xenial 4.4.0.271.277
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-7684-1
CVE-2023-52975, CVE-2024-49883, CVE-2024-49950, CVE-2024-50073,
CVE-2024-53239
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