Advisory Published

USN-7428-1: Linux kernel vulnerabilities

First published: Wed Apr 09 2025(Updated: )

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:

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1141-oracle<4.15.0-1141.152
4.15.0-1141.152
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1162-kvm<4.15.0-1162.167
4.15.0-1162.167
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1172-gcp<4.15.0-1172.189
4.15.0-1172.189
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1179-aws<4.15.0-1179.192
4.15.0-1179.192
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1187-azure<4.15.0-1187.202
4.15.0-1187.202
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-236-generic<4.15.0-236.248
4.15.0-236.248
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-236-lowlatency<4.15.0-236.248
4.15.0-236.248
Ubuntu=18.04
All of
ubuntu/linux-image-aws-lts-18.04<4.15.0.1179.177
4.15.0.1179.177
Ubuntu=18.04
All of
ubuntu/linux-image-azure-lts-18.04<4.15.0.1187.155
4.15.0.1187.155
Ubuntu=18.04
All of
ubuntu/linux-image-gcp-lts-18.04<4.15.0.1172.185
4.15.0.1172.185
Ubuntu=18.04
All of
ubuntu/linux-image-generic<4.15.0.236.220
4.15.0.236.220
Ubuntu=18.04
All of
ubuntu/linux-image-kvm<4.15.0.1162.153
4.15.0.1162.153
Ubuntu=18.04
All of
ubuntu/linux-image-lowlatency<4.15.0.236.220
4.15.0.236.220
Ubuntu=18.04
All of
ubuntu/linux-image-oracle-lts-18.04<4.15.0.1141.146
4.15.0.1141.146
Ubuntu=18.04
All of
ubuntu/linux-image-virtual<4.15.0.236.220
4.15.0.236.220
Ubuntu=18.04
All of
ubuntu/linux-image-4.15.0-1141-oracle<4.15.0-1141.152~16.04.1
4.15.0-1141.152~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1172-gcp<4.15.0-1172.189~16.04.1
4.15.0-1172.189~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1179-aws<4.15.0-1179.192~16.04.1
4.15.0-1179.192~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1187-azure<4.15.0-1187.202~16.04.1
4.15.0-1187.202~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-236-generic<4.15.0-236.248~16.04.1
4.15.0-236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-236-lowlatency<4.15.0-236.248~16.04.1
4.15.0-236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-aws-hwe<4.15.0.1179.192~16.04.1
4.15.0.1179.192~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-azure<4.15.0.1187.202~16.04.1
4.15.0.1187.202~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-gcp<4.15.0.1172.189~16.04.1
4.15.0.1172.189~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-generic-hwe-16.04<4.15.0.236.248~16.04.1
4.15.0.236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-gke<4.15.0.1172.189~16.04.1
4.15.0.1172.189~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-lowlatency-hwe-16.04<4.15.0.236.248~16.04.1
4.15.0.236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-oem<4.15.0.236.248~16.04.1
4.15.0.236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-oracle<4.15.0.1141.152~16.04.1
4.15.0.1141.152~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-virtual-hwe-16.04<4.15.0.236.248~16.04.1
4.15.0.236.248~16.04.1
Ubuntu=16.04
All of
ubuntu/linux-image-4.15.0-1187-azure<4.15.0-1187.202~14.04.1
4.15.0-1187.202~14.04.1
Ubuntu=14.04
All of
ubuntu/linux-image-azure<4.15.0.1187.202~14.04.1
4.15.0.1187.202~14.04.1
Ubuntu=14.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-7428-1?

    The severity of USN-7428-1 is considered high due to potential unauthorized access and denial of service risks.

  • How do I fix USN-7428-1?

    To fix USN-7428-1, you should update to the specified secure versions of the respective packages for Ubuntu 18.04 or 16.04.

  • What are the affected packages in USN-7428-1?

    Affected packages in USN-7428-1 include multiple versions of linux-image packages for both Ubuntu 18.04 and 16.04.

  • Can USN-7428-1 affect virtualized environments?

    Yes, USN-7428-1 can affect virtualized environments by allowing attackers to gain access to the memory pages of guest VMs.

  • Where can I find more information about USN-7428-1?

    More information about USN-7428-1 can be found in the Ubuntu security notices or advisories.

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