Patch security vulnerability bash shell.

patch-bash-4.3.25.sh

env x='() { :;}; echo vulnerable' bash -c "echo this is a test"

TEMP_PATH="_______TEMP_________"

rm -rf ${TEMP_PATH}
if [ ! -d "${TEMP_PATH}" ]; then
	mkdir ${TEMP_PATH}
fi
cd ${TEMP_PATH}

if [ -d "bash-4.3" ]; then
	rmdir -rf "bash-4.3"
fi

wget http://ftp.gnu.org/pub/gnu/bash/bash-4.3.tar.gz
tar zxvf bash-4.3.tar.gz
cd bash-4.3

for PATCH_VERSION in $(seq -f "bash43-%03g" 1 25)
do
	wget "http://ftp.gnu.org/pub/gnu/bash/bash-4.3-patches/${PATCH_VERSION}"
	patch -p0 < ${PATCH_VERSION}
done

./configure
make

sudo cp -f ./bash /bin/

cd ../..
rm -rf ${TEMP_PATH}