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Ubuntu Security Notice USN-5588-1

Ubuntu Security Notice 5588-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code.

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==========================================================================Ubuntu Security Notice USN-5588-1August 30, 2022linux vulnerability==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 14.04 ESMSummary:The system could be made to crash or run programs as an administrator.Software Description:- linux: Linux kernelDetails:Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 14.04 ESM:   linux-image-3.13.0-191-generic  3.13.0-191.242   linux-image-3.13.0-191-lowlatency  3.13.0-191.242   linux-image-generic             3.13.0.191.201   linux-image-lowlatency          3.13.0.191.201   linux-image-server              3.13.0.191.201   linux-image-virtual             3.13.0.191.201After a standard system update you need to reboot your computer to makeall the necessary changes.ATTENTION: Due to an unavoidable ABI change the kernel updates havebeen given a new version number, which requires you to recompile andreinstall 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 performthis as well.References:   https://ubuntu.com/security/notices/USN-5588-1   CVE-2022-2588

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