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Ubuntu 14.04 LTS USN-6460-1 Critical: Kernel Denial of Service Fixes

ubuntu
Calendar Grey October 30, 2023
Dist Ubuntu Esm H88
The newest updates for Ubuntu focus on fixing significant flaws in the Linux kernel, improving both the security and reliability of the operating system.
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel Details: It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service (excessive CPU consumption). (CVE-2023-1206) It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform data buffer size validation in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1380) Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds w...

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Topics Covered

security advisory denial of service critical Ubuntu kernel system crash security issues

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-3.13.0-194-generic 3.13.0-194.245 linux-image-3.13.0-194-lowlatency 3.13.0-194.245 linux-image-generic 3.13.0.194.204 linux-image-generic-lts-trusty 3.13.0.194.204 linux-image-lowlatency 3.13.0.194.204 linux-image-server 3.13.0.194.204 linux-image-virtual 3.13.0.194.204 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-6460-1

CVE-2023-1206, CVE-2023-1380, CVE-2023-31436, CVE-2023-35001,

CVE-2023-42752, CVE-2023-42755, CVE-2023-4623

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Ubuntu Security Notice USN-6460-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu kernel system crash security issues

Package Information

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