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Ubuntu 23.04: USN-6224-1 Critical: Kernel Denial Of Service Threat

ubuntu
Calendar Grey July 12, 2023
Dist Ubuntu Esm H88
Vulnerabilities have been resolved in the Linux core for Ubuntu, including problems related to out-of-bounds access and errors in file system verification.
Several security issues were fixed in the Linux kernel.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: linux-image-6.2.0-1007-aws 6.2.0-1007.7 linux-image-6.2.0-1008-kvm 6.2.0-1008.8 linux-image-6.2.0-1008-lowlatency 6.2.0-1008.8 linux-image-6.2.0-1008-lowlatency-64k 6.2.0-1008.8 linux-image-6.2.0-1008-raspi 6.2.0-1008.10 linux-image-6.2.0-25-generic 6.2.0-25.25 linux-image-6.2.0-25-generic-64k 6.2.0-25.25 linux-image-6.2.0-25-generic-lpae 6.2.0-25.25 linux-image-aws 6.2.0.1007.8 linux-image-generic 6.2.0.25.25 linux-image-generic-64k 6.2.0.25.25 linux-image-generic-lpae 6.2.0.25.25 linux-image-kvm 6.2.0.1008.8 linux-image-lowlatency 6.2.0.1008.8 linux-image-lowlatency-64k 6.2.0.1008.8 linux-image-raspi 6.2.0.1008.11 linux-image-raspi-nolpae 6.2.0.1008.11 linux-image-virtual 6.2.0.25.25 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-6224-1

CVE-2023-2124, CVE-2023-2176

Severity
critical
Lowest
Low
Medium
High
Critical

July 12, 2023

Package Information

https://launchpad.net/ubuntu/+source/linux/6.2.0-25.25 https://launchpad.net/ubuntu/+source/linux-aws/6.2.0-1007.7 https://launchpad.net/ubuntu/+source/linux-kvm/6.2.0-1008.8 https://launchpad.net/ubuntu/+source/linux-lowlatency/6.2.0-1008.8 https://launchpad.net/ubuntu/+source/linux-raspi/6.2.0-1008.10

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