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Ubuntu 22.04: USN-6707-4 Critical: Linux Kernel Azure Issues

ubuntu
Calendar Grey March 28, 2024
Dist Ubuntu Esm H88
Tackling a variety of vulnerabilities in the Linux kernel pertinent to cloud environments, particularly addressing use-after-free bugs impacting Ubuntu 22.04.
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure-6.5: Linux kernel for Microsoft Azure cloud systems Details: Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle element deactivation in certain cases, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-1085) Notselwyn discovered that the netfilter subsystem in the Linux kernel did not properly handle verdict parameters in certain cases, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-1086) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to ...

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Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system update use-after-free Azure

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-6.5.0-1017-azure 6.5.0-1017.17~22.04.1 linux-image-6.5.0-1017-azure-fde 6.5.0-1017.17~22.04.1 linux-image-azure 6.5.0.1017.17~22.04.1 linux-image-azure-fde 6.5.0.1017.17~22.04.1 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-6707-4

https://ubuntu.com/security/notices/USN-6707-1

CVE-2024-1085, CVE-2024-1086, CVE-2024-26597, CVE-2024-26599

Severity
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Ubuntu Security Notice USN-6707-4

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system update use-after-free Azure

Package Information

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