=========================================================================Ubuntu Security Notice USN-6191-1
June 29, 2023

linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15,
linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm,
linux-oracle, linux-raspi2, linux-snapdragon regression
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

The system could show undesired warning messages in certain conditions.

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-dell300x: Linux kernel for Dell 300x platforms
- 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-raspi2: Linux kernel for Raspberry Pi systems
- linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors
- 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:

USN-6081-1, USN-6084-1, USN-6092-1 and USN-6095-1 fixed vulnerabilities in
the Linux kernel. Unfortunately, that update introduced a spurious warning
in the IPv6 subsystem. This update removes the undesired warning message.

Update instructions:

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

Ubuntu 18.04 LTS:
   linux-image-4.15.0-1067-dell300x  4.15.0-1067.72
   linux-image-4.15.0-1121-oracle  4.15.0-1121.132
   linux-image-4.15.0-1134-raspi2  4.15.0-1134.142
   linux-image-4.15.0-1142-kvm     4.15.0-1142.147
   linux-image-4.15.0-1151-gcp     4.15.0-1151.167
   linux-image-4.15.0-1152-snapdragon  4.15.0-1152.162
   linux-image-4.15.0-1158-aws     4.15.0-1158.171
   linux-image-4.15.0-1167-azure   4.15.0-1167.182
   linux-image-4.15.0-213-generic  4.15.0-213.224
   linux-image-4.15.0-213-generic-lpae  4.15.0-213.224
   linux-image-4.15.0-213-lowlatency  4.15.0-213.224
   linux-image-aws-lts-18.04       4.15.0.1158.156
   linux-image-azure-lts-18.04     4.15.0.1167.135
   linux-image-dell300x            4.15.0.1067.66
   linux-image-gcp-lts-18.04       4.15.0.1151.165
   linux-image-generic             4.15.0.213.196
   linux-image-generic-lpae        4.15.0.213.196
   linux-image-kvm                 4.15.0.1142.133
   linux-image-lowlatency          4.15.0.213.196
   linux-image-oracle-lts-18.04    4.15.0.1121.126
   linux-image-raspi2              4.15.0.1134.129
   linux-image-snapdragon          4.15.0.1152.151
   linux-image-virtual             4.15.0.213.196

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   linux-image-4.15.0-1121-oracle  4.15.0-1121.132~16.04.1
   linux-image-4.15.0-1152-gcp     4.15.0-1152.168~16.04.1
   linux-image-4.15.0-1158-aws     4.15.0-1158.171~16.04.1
   linux-image-4.15.0-1167-azure   4.15.0-1167.182~16.04.1
   linux-image-4.15.0-213-generic  4.15.0-213.224~16.04.1
   linux-image-4.15.0-213-lowlatency  4.15.0-213.224~16.04.1
   linux-image-aws-hwe             4.15.0.1158.141
   linux-image-azure               4.15.0.1167.151
   linux-image-gcp                 4.15.0.1152.142
   linux-image-generic-hwe-16.04   4.15.0.213.198
   linux-image-gke                 4.15.0.1152.142
   linux-image-lowlatency-hwe-16.04  4.15.0.213.198
   linux-image-oem                 4.15.0.213.198
   linux-image-oracle              4.15.0.1121.102
   linux-image-virtual-hwe-16.04   4.15.0.213.198

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://launchpad.net/bugs/2020279
   https://ubuntu.com/security/notices/USN-6191-1

Package Information:
   https://launchpad.net/ubuntu/+source/linux/4.15.0-213.224
   https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1158.171
   https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1167.182
   https://launchpad.net/ubuntu/+source/linux-dell300x/4.15.0-1067.72
   https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1151.167
   https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1142.147
   https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1121.132
   https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1134.142
   https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1152.162

Ubuntu 6191-1: Linux kernel regression

June 29, 2023
The system could show undesired warning messages in certain conditions.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1067-dell300x 4.15.0-1067.72 linux-image-4.15.0-1121-oracle 4.15.0-1121.132 linux-image-4.15.0-1134-raspi2 4.15.0-1134.142 linux-image-4.15.0-1142-kvm 4.15.0-1142.147 linux-image-4.15.0-1151-gcp 4.15.0-1151.167 linux-image-4.15.0-1152-snapdragon 4.15.0-1152.162 linux-image-4.15.0-1158-aws 4.15.0-1158.171 linux-image-4.15.0-1167-azure 4.15.0-1167.182 linux-image-4.15.0-213-generic 4.15.0-213.224 linux-image-4.15.0-213-generic-lpae 4.15.0-213.224 linux-image-4.15.0-213-lowlatency 4.15.0-213.224 linux-image-aws-lts-18.04 4.15.0.1158.156 linux-image-azure-lts-18.04 4.15.0.1167.135 linux-image-dell300x 4.15.0.1067.66 linux-image-gcp-lts-18.04 4.15.0.1151.165 linux-image-generic 4.15.0.213.196 linux-image-generic-lpae 4.15.0.213.196 linux-image-kvm 4.15.0.1142.133 linux-image-lowlatency 4.15.0.213.196 linux-image-oracle-lts-18.04 4.15.0.1121.126 linux-image-raspi2 4.15.0.1134.129 linux-image-snapdragon 4.15.0.1152.151 linux-image-virtual 4.15.0.213.196 Ubuntu 16.04 LTS (Available with Ubuntu Pro): linux-image-4.15.0-1121-oracle 4.15.0-1121.132~16.04.1 linux-image-4.15.0-1152-gcp 4.15.0-1152.168~16.04.1 linux-image-4.15.0-1158-aws 4.15.0-1158.171~16.04.1 linux-image-4.15.0-1167-azure 4.15.0-1167.182~16.04.1 linux-image-4.15.0-213-generic 4.15.0-213.224~16.04.1 linux-image-4.15.0-213-lowlatency 4.15.0-213.224~16.04.1 linux-image-aws-hwe 4.15.0.1158.141 linux-image-azure 4.15.0.1167.151 linux-image-gcp 4.15.0.1152.142 linux-image-generic-hwe-16.04 4.15.0.213.198 linux-image-gke 4.15.0.1152.142 linux-image-lowlatency-hwe-16.04 4.15.0.213.198 linux-image-oem 4.15.0.213.198 linux-image-oracle 4.15.0.1121.102 linux-image-virtual-hwe-16.04 4.15.0.213.198 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://launchpad.net/bugs/2020279

https://ubuntu.com/security/notices/USN-6191-1

Severity
June 29, 2023

Package Information

https://launchpad.net/ubuntu/+source/linux/4.15.0-213.224 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1158.171 https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1167.182 https://launchpad.net/ubuntu/+source/linux-dell300x/4.15.0-1067.72 https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1151.167 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1142.147 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1121.132 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1134.142 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1152.162

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