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Ubuntu 14.04 LTS USN-6645-1: Critical Kernel Denial of Service

ubuntu
Calendar Grey February 20, 2024
Dist Ubuntu Esm H88
Mitigate memory exhaustion vulnerabilities in Ubuntu 14.04 by updating your system, upgrading the kernel, applying patches, and conducting regular audits
The system could be made to stop responding under certain conditions.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: The system could be made to stop responding under certain conditions. Software Description: - linux: Linux kernel Details: It was discovered that the netfilter connection tracker for netlink in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion).

Topics%20covered

Topics Covered

security advisory denial of service kernel ubuntu memory exhaustion crash

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS (Available with Ubuntu Pro): linux-image-3.13.0-196-generic 3.13.0-196.247 linux-image-3.13.0-196-lowlatency 3.13.0-196.247 linux-image-generic 3.13.0.196.206 linux-image-generic-lts-trusty 3.13.0.196.206 linux-image-lowlatency 3.13.0.196.206 linux-image-server 3.13.0.196.206 linux-image-virtual 3.13.0.196.206 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

CVE-2023-7192

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6645-1

Topics%20covered

Topics Covered

security advisory denial of service kernel ubuntu memory exhaustion crash

Package Information

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