Some errors where discovered in the Linux kernel’s UDF file system, which is used to mount some CD-ROMs and DVDs. An unprivileged local user could use these flaws to crash the system.
Updated packages are available from security.ubuntu.com.
========================================================================== Ubuntu Security Notice USN-1557-1 September 07, 2012 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.04 Summary: The system could be made to crash under certain conditions. Software Description: - linux: Linux kernel Details: Some errors where discovered in the Linux kernel's UDF file system, which is used to mount some CD-ROMs and DVDs. An unprivileged local user could use these flaws to crash the system. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.04: linux-image-2.6.38-15-generic 2.6.38-15.66 linux-image-2.6.38-15-generic-pae 2.6.38-15.66 linux-image-2.6.38-15-omap 2.6.38-15.66 linux-image-2.6.38-15-powerpc 2.6.38-15.66 linux-image-2.6.38-15-powerpc-smp 2.6.38-15.66 linux-image-2.6.38-15-powerpc64-smp 2.6.38-15.66 linux-image-2.6.38-15-server 2.6.38-15.66 linux-image-2.6.38-15-versatile 2.6.38-15.66 linux-image-2.6.38-15-virtual 2.6.38-15.66 After a standard system update you need to reboot your computer to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1557-1 CVE-2012-3400 Package Information: https://launchpad.net/ubuntu/+source/linux/2.6.38-15.66