If you have an ubuntu system is better to upgrade the kernel as soon as possible
There is an known exploit in the wild ,my servers are already patched and rebooted

This article is about compiling a kernel on Ubuntu systems. It describes how to build a custom kernel using the latest unmodified kernel sources from www.kernel.org (vanilla kernel) so that you are independent from the kernels supplied by your distribution.

cd /usr/src
wget --continue http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.23.14.tar.bz2
tar jxvf linux-2.6.23.14.tar.bz2
ln -s linux-2.6.23.14 linux
cd linux
cp /boot/config-`uname -r` ./.config
make menuconfig
make-kpkg clean
fakeroot make-kpkg --initrd --append-to-version=-custom kernel_image kernel_headers
cd ..
dpkg -i linux-image-2.6.23.14-custom_2.6.23.14-custom-10.00.Custom_i386.deb
shutdown -r now

you can install the headers too from /usr/src/linux-headers-2.6.23.14-*

How To Compile A Kernel - The Ubuntu Way | HowtoForge - Linux Howtos and Tutorials

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