============================================================================ Ubuntu Security Notice USN-1579-1 September 21, 2012 linux vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 LTS Summary: Several security issues were fixed in the kernel. Software Description: - linux: Linux kernel Details: Ben Hutchings reported a flaw in the Linux kernel with some network drivers that support TSO (TCP segment offload). A local or peer user could exploit this flaw to to cause a denial of service. (CVE-2012-3412) Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel implementation of RDS sockets. A local unprivileged user could potentially use this flaw to read privileged information from the kernel. (CVE-2012-3430) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.2.0-31-generic 3.2.0-31.50 linux-image-3.2.0-31-generic-pae 3.2.0-31.50 linux-image-3.2.0-31-highbank 3.2.0-31.50 linux-image-3.2.0-31-omap 3.2.0-31.50 linux-image-3.2.0-31-powerpc-smp 3.2.0-31.50 linux-image-3.2.0-31-powerpc64-smp 3.2.0-31.50 linux-image-3.2.0-31-virtual 3.2.0-31.50 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. 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. References: http://www.ubuntu.com/usn/usn-1579-1 CVE-2012-3412, CVE-2012-3430 Package Information: https://launchpad.net/ubuntu/+source/linux/3.2.0-31.50