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==========================================================================
Ubuntu Security Notice USN-7428-1
April 09, 2025
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp,
linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 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-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe: Linux hardware enablement (HWE) kernel
Details:
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- HID subsystem;
- Network drivers;
- Mellanox network drivers;
- SCSI subsystem;
- SuperH / SH-Mobile drivers;
- File systems infrastructure;
- Ext4 file system;
- JFS file system;
- IP tunnels definitions;
- Network namespace;
- BPF subsystem;
- Networking core;
- HSR network protocol;
- IPv4 networking;
- IPv6 networking;
- Network traffic control;
(CVE-2024-56615, CVE-2024-56600, CVE-2025-21700, CVE-2024-56658,
CVE-2024-35960, CVE-2024-50265, CVE-2025-21702, CVE-2024-53227,
CVE-2024-53165, CVE-2024-50167, CVE-2024-26863, CVE-2024-35973,
CVE-2024-46826, CVE-2021-47119, CVE-2024-50302, CVE-2024-49952,
CVE-2021-47101, CVE-2024-49948, CVE-2024-56595)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS
linux-image-4.15.0-1141-oracle 4.15.0-1141.152
Available with Ubuntu Pro
linux-image-4.15.0-1162-kvm 4.15.0-1162.167
Available with Ubuntu Pro
linux-image-4.15.0-1172-gcp 4.15.0-1172.189
Available with Ubuntu Pro
linux-image-4.15.0-1179-aws 4.15.0-1179.192
Available with Ubuntu Pro
linux-image-4.15.0-1187-azure 4.15.0-1187.202
Available with Ubuntu Pro
linux-image-4.15.0-236-generic 4.15.0-236.248
Available with Ubuntu Pro
linux-image-4.15.0-236-lowlatency 4.15.0-236.248
Available with Ubuntu Pro
linux-image-aws-lts-18.04 4.15.0.1179.177
Available with Ubuntu Pro
linux-image-azure-lts-18.04 4.15.0.1187.155
Available with Ubuntu Pro
linux-image-gcp-lts-18.04 4.15.0.1172.185
Available with Ubuntu Pro
linux-image-generic 4.15.0.236.220
Available with Ubuntu Pro
linux-image-kvm 4.15.0.1162.153
Available with Ubuntu Pro
linux-image-lowlatency 4.15.0.236.220
Available with Ubuntu Pro
linux-image-oracle-lts-18.04 4.15.0.1141.146
Available with Ubuntu Pro
linux-image-virtual 4.15.0.236.220
Available with Ubuntu Pro
Ubuntu 16.04 LTS
linux-image-4.15.0-1141-oracle 4.15.0-1141.152~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-1172-gcp 4.15.0-1172.189~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-1179-aws 4.15.0-1179.192~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-1187-azure 4.15.0-1187.202~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-236-generic 4.15.0-236.248~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-236-lowlatency 4.15.0-236.248~16.04.1
Available with Ubuntu Pro
linux-image-aws-hwe 4.15.0.1179.192~16.04.1
Available with Ubuntu Pro
linux-image-azure 4.15.0.1187.202~16.04.1
Available with Ubuntu Pro
linux-image-gcp 4.15.0.1172.189~16.04.1
Available with Ubuntu Pro
linux-image-generic-hwe-16.04 4.15.0.236.248~16.04.1
Available with Ubuntu Pro
linux-image-gke 4.15.0.1172.189~16.04.1
Available with Ubuntu Pro
linux-image-lowlatency-hwe-16.04 4.15.0.236.248~16.04.1
Available with Ubuntu Pro
linux-image-oem 4.15.0.236.248~16.04.1
Available with Ubuntu Pro
linux-image-oracle 4.15.0.1141.152~16.04.1
Available with Ubuntu Pro
linux-image-virtual-hwe-16.04 4.15.0.236.248~16.04.1
Available with Ubuntu Pro
Ubuntu 14.04 LTS
linux-image-4.15.0-1187-azure 4.15.0-1187.202~14.04.1
Available with Ubuntu Pro
linux-image-azure 4.15.0.1187.202~14.04.1
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-7428-1
CVE-2021-47101, CVE-2021-47119, CVE-2022-23041, CVE-2024-26863,
CVE-2024-35960, CVE-2024-35973, 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-2024-56615, CVE-2024-56658, CVE-2025-21700, CVE-2025-21702
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