--- title: 'USN-1313-1: Linux Kernel (Oneiric backport) 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-1313-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-1313-1 --- # USN-1313-1: Linux Kernel (Oneiric backport) vulnerability Publication date 19 December 2011 Overview Several security issues were fixed in the kernel. Releases [10.04](https://ubuntu.com/security/notices?release=lucid) --- Open side navigation ## Packages * [linux-lts-backport-oneiric](https://ubuntu.com/security/cves?package=linux-lts-backport-oneiric) - Linux kernel backport from Oneiric ## Details Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops. ## 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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, 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 | | --- | --- | | 10.04 lucid | [linux-image-3.0.0-14-generic](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric) –  [3.0.0-14.23~lucid1](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-14.23~lucid1) | | | | [linux-image-3.0.0-14-server](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric) –  [3.0.0-14.23~lucid1](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-14.23~lucid1) | | | | [linux-image-3.0.0-14-generic-pae](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric) –  [3.0.0-14.23~lucid1](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-14.23~lucid1) | | | | [linux-image-3.0.0-14-virtual](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric) –  [3.0.0-14.23~lucid1](https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-14.23~lucid1) | | | --- ### 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-2011-4081](https://ubuntu.com/security/CVE-2011-4081) ## Related notices * [USN-1322-1](https://ubuntu.com/security/notices/USN-1322-1) * [USN-1312-1](https://ubuntu.com/security/notices/USN-1312-1) * [USN-1311-1](https://ubuntu.com/security/notices/USN-1311-1) * [USN-1304-1](https://ubuntu.com/security/notices/USN-1304-1) * [USN-1303-1](https://ubuntu.com/security/notices/USN-1303-1) * [USN-1302-1](https://ubuntu.com/security/notices/USN-1302-1) * [USN-1301-1](https://ubuntu.com/security/notices/USN-1301-1) * [USN-1299-1](https://ubuntu.com/security/notices/USN-1299-1) * [USN-1293-1](https://ubuntu.com/security/notices/USN-1293-1) * [USN-1292-1](https://ubuntu.com/security/notices/USN-1292-1) --- Show 1 more references --- 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)