Ubuntu Update for linux USN-1507-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1507-1
Solution
Please Install the Updated Packages.
Insight
A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1601) An error was found in the Linux kernel's IPv6 netfilter when connection tracking is enabled. A remote attacker could exploit this flaw to crash a system if it is using IPv6 with the nf_contrack_ipv6 kernel module loaded. (CVE-2012-2744)
Affected
linux on Ubuntu 8.04 LTS