Ubuntu Update for linux-ec2 USN-2267-1

Solution
Please Install the Updated Packages.
Insight
Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on x86_64 processors. An attacker could exploit this flaw to cause a denial of service (System Crash) or potential gain administrative privileges.
Affected
linux-ec2 on Ubuntu 10.04 LTS