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Ubuntu 20.04 LTS USN-6548-1 critical: kernel DoS and out-of-bounds issues

ubuntu
Calendar Grey December 11, 2023
Dist Ubuntu Esm H88
Significant vulnerabilities in kernel security within Ubuntu have been identified. Timely upgrades are advised to maintain system resilience against potential attacks.
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) 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: Linux kernel for Microsoft Azure Cloud systems - linux-bluefield: Linux kernel for NVIDIA BlueField platforms - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-kvm: Linux kernel for cloud environments - linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe-5.4: Linux hardware enablement (HWE) kernel - linux-ibm-5.4: Linux kernel for IBM cloud sy...

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Topics%20covered

Topics Covered

security advisory denial of service kernel system update ubuntu out-of-bounds

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1035-xilinx-zynqmp 5.4.0-1035.39 linux-image-5.4.0-1063-ibm 5.4.0-1063.68 linux-image-5.4.0-1076-bluefield 5.4.0-1076.82 linux-image-5.4.0-1104-kvm 5.4.0-1104.111 linux-image-5.4.0-1116-aws 5.4.0-1116.126 linux-image-5.4.0-1120-gcp 5.4.0-1120.129 linux-image-5.4.0-1121-azure 5.4.0-1121.128 linux-image-5.4.0-169-generic 5.4.0-169.187 linux-image-5.4.0-169-generic-lpae 5.4.0-169.187 linux-image-5.4.0-169-lowlatency 5.4.0-169.187 linux-image-aws-lts-20.04 5.4.0.1116.113 linux-image-azure-lts-20.04 5.4.0.1121.114 linux-image-bluefield 5.4.0.1076.71 linux-image-gcp-lts-20.04 5.4.0.1120.122 linux-image-generic 5.4.0.169.167 linux-image-generic-lpae 5.4.0.169.167 linux-image-ibm-lts-20.04 5.4.0.1063.92 linux-image-kvm 5.4.0.1104.100 linux-image-lowlatency 5.4.0.169.167 linux-image-oem 5.4.0.169.167 linux-image-oem-osp1 5.4.0.169.167 linux-image-virtual 5.4.0.169.167 linux-image-xilinx-zynqmp 5.4.0.1035.35 Ubuntu 18.04 LTS (Available with Ubuntu Pro): linux-image-5.4.0-1063-ibm 5.4.0-1063.68~18.04.1 linux-image-5.4.0-1116-aws 5.4.0-1116.126~18.04.1 linux-image-5.4.0-1120-gcp 5.4.0-1120.129~18.04.1 linux-image-5.4.0-1121-azure 5.4.0-1121.128~18.04.1 linux-image-5.4.0-169-generic 5.4.0-169.187~18.04.1 linux-image-5.4.0-169-lowlatency 5.4.0-169.187~18.04.1 linux-image-aws 5.4.0.1116.94 linux-image-azure 5.4.0.1121.94 linux-image-gcp 5.4.0.1120.96 linux-image-generic-hwe-18.04 5.4.0.169.187~18.04.137 linux-image-ibm 5.4.0.1063.73 linux-image-lowlatency-hwe-18.04 5.4.0.169.187~18.04.137 linux-image-oem 5.4.0.169.187~18.04.137 linux-image-oem-osp1 5.4.0.169.187~18.04.137 linux-image-snapdragon-hwe-18.04 5.4.0.169.187~18.04.137 linux-image-virtual-hwe-18.04 5.4.0.169.187~18.04.137 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-6548-1

CVE-2023-3006, CVE-2023-37453, CVE-2023-39189, CVE-2023-39192,

CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-5178,

CVE-2023-5717, CVE-2023-6176

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6548-1

Topics%20covered

Topics Covered

security advisory denial of service kernel system update ubuntu out-of-bounds

Package Information

https://launchpad.net/ubuntu/+source/linux/5.4.0-169.187 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1116.126 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1121.128 https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1076.82 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1120.129 https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1063.68 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1104.111 https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.4.0-1035.39

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