--- title: 'USN-5346-1: Linux kernel (OEM) vulnerability | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-5346-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-5346-1 --- # USN-5346-1: Linux kernel (OEM) vulnerability Publication date 24 March 2022 Overview The system could be made to crash if it received specially crafted network traffic. Releases [20.04 LTS](https://ubuntu.com/security/notices?release=focal) --- Open side navigation ## Packages * [linux-oem-5.14](https://ubuntu.com/security/cves?package=linux-oem-5.14) - Linux kernel for OEM systems ## Details It was discovered that the ICMPv6 implementation in the Linux kernel did not properly deallocate memory in certain situations. A remote attacker could possibly use this to cause a denial of service (memory exhaustion). ## Update instructions After a standard system update you need to reboot your computer to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) 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. The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 20.04 LTS focal | [linux-image-oem-20.04c](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14) –  [5.14.0.1029.26](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14/5.14.0.1029.26) | | | | [linux-image-oem-20.04b](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14) –  [5.14.0.1029.26](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14/5.14.0.1029.26) | | | | [linux-image-oem-20.04d](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14) –  [5.14.0.1029.26](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14/5.14.0.1029.26) | | | | [linux-image-oem-20.04](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14) –  [5.14.0.1029.26](https://launchpad.net/ubuntu/+source/linux-meta-oem-5.14/5.14.0.1029.26) | | | | [linux-image-5.14.0-1029-oem](https://launchpad.net/ubuntu/+source/linux-signed-oem-5.14) –  [5.14.0-1029.32](https://launchpad.net/ubuntu/+source/linux-signed-oem-5.14/5.14.0-1029.32) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2022-0742](https://ubuntu.com/security/CVE-2022-0742) ## Related notices * [USN-5368-1](https://ubuntu.com/security/notices/USN-5368-1) * [USN-5362-1](https://ubuntu.com/security/notices/USN-5362-1) * [USN-5337-1](https://ubuntu.com/security/notices/USN-5337-1) --- Have additional questions? [Talk to a member of the team ›](https://wiki.ubuntu.com/SecurityTeam/FAQ?_ga=2.242131138.1744859116.1742138161-1500419473.1726851136&_gl=1*161muja*_gcl_au*MzUyMTIzNjI1LjE3MzYyNDQ4NTE.#Contact)