Pesky Linux Kernel Amazon EC2 Exploit Fixed by Canonical

Users of this distribution have been asked to update as soon as possible

A security vulnerability that was discovered in the Linux kernel EC2 (Amazon EC2) affecting the Ubuntu 10.04 LTS (Lucid Lynx) operating system, was announced by Canonical.

This is the kernel vulnerability found in the Linux kernel packages: CVE-2012-4565. The system could have been made to run programs as an administrator.

A flaw was discovered in the Linux kernel's TCP illinois congestion control algorithm and a local attacker could have used this to cause a denial of service.

The security flaws can be fixed if you upgrade your system(s) to the linux-image-2.6.32-350-ec2 (2.6.32-350.57).

Don't forget to reboot your computer after the upgrade!

ATTENTION: Due to an unavoidable ABI change, the kernel packages have a new version number, which will force you to reinstall and recompile all third-party kernel modules you might have installed. Moreover, if you use the linux-restricted-modules package, you have to update it as well to get modules that work with the new Linux kernel version.

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