--- title: 'USN-4413-1: Linux kernel vulnerabilities | 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-4413-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-4413-1 --- # USN-4413-1: Linux kernel vulnerabilities Publication date 2 July 2020 Overview Several security issues were fixed in the Linux kernel. Releases [18.04 LTS](https://ubuntu.com/security/notices?release=bionic) --- Open side navigation ## Packages * [linux-gke-5.0](https://ubuntu.com/security/cves?package=linux-gke-5.0) - Linux kernel for Google Container Engine (GKE) systems * [linux-oem-osp1](https://ubuntu.com/security/cves?package=linux-oem-osp1) - Linux kernel for OEM systems ## Details Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of service (system crash). ([CVE-2020-10711](https://ubuntu.com/security/CVE-2020-10711)) It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain error conditions correctly. A local privileged attacker could use this to cause a denial of service (system crash). ([CVE-2020-12770](https://ubuntu.com/security/CVE-2020-12770)) It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed from configfs in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. ([CVE-2020-13143](https://ubuntu.com/security/CVE-2020-13143)) Dmitry Vyukov discovered that the SELinux netlink... --- Show more ## 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 | | --- | --- | | 18.04 LTS bionic | [linux-image-5.0.0-1043-gke](https://launchpad.net/ubuntu/+source/linux-signed-gke-5.0) –  [5.0.0-1043.44](https://launchpad.net/ubuntu/+source/linux-signed-gke-5.0/5.0.0-1043.44) | | | | [linux-image-5.0.0-1063-oem-osp1](https://launchpad.net/ubuntu/+source/linux-signed-oem-osp1) –  [5.0.0-1063.68](https://launchpad.net/ubuntu/+source/linux-signed-oem-osp1/5.0.0-1063.68) | | | | [linux-image-gke-5.0](https://launchpad.net/ubuntu/+source/linux-meta-gke-5.0) –  [5.0.0.1043.28](https://launchpad.net/ubuntu/+source/linux-meta-gke-5.0/5.0.0.1043.28) | | | | [linux-image-oem-osp1](https://launchpad.net/ubuntu/+source/linux-meta-oem-osp1) –  [5.0.0.1063.61](https://launchpad.net/ubuntu/+source/linux-meta-oem-osp1/5.0.0.1063.61) | | | --- ### 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-2020-13143](https://ubuntu.com/security/CVE-2020-13143) * [CVE-2020-12770](https://ubuntu.com/security/CVE-2020-12770) * [CVE-2020-12768](https://ubuntu.com/security/CVE-2020-12768) * [CVE-2020-10751](https://ubuntu.com/security/CVE-2020-10751) * [CVE-2020-10711](https://ubuntu.com/security/CVE-2020-10711) ## Related notices * [USN-4419-1](https://ubuntu.com/security/notices/USN-4419-1) * [USN-4414-1](https://ubuntu.com/security/notices/USN-4414-1) * [USN-4412-1](https://ubuntu.com/security/notices/USN-4412-1) * [USN-4411-1](https://ubuntu.com/security/notices/USN-4411-1) * [USN-4391-1](https://ubuntu.com/security/notices/USN-4391-1) * [USN-4390-1](https://ubuntu.com/security/notices/USN-4390-1) * [USN-4389-1](https://ubuntu.com/security/notices/USN-4389-1) --- 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)