Ubuntu 14.04 LTS: bash 4.3-7ubuntu1.1
Ubuntu 12.04 LTS: bash 4.2-2ubuntu2.2
Ubuntu 10.04 LTS: bash 4.1-2ubuntu3.1
For releases in-between, you should be able to manually download one of those versions from http://archive.ubuntu.com/ubuntu/pool/main/b/bash/ and install it. I wonder how many vulnerable boxes there are that won't get these updates because Ubuntu stops support after 9 months. There must be tons of boxes running 13.10, it's not even a year old yet.
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amd64
wget archive.ubuntu.com/ubuntu/pool/main/b/bash/bash_4.2-2ubuntu2.3_amd64.deb
sudo dpkg -i bash_4.2-2ubuntu2.3_amd64.deb
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i386
wget archive.ubuntu.com/ubuntu/pool/main/b/bash/bash_4.2-2ubuntu2.3_i386.deb
sudo dpkg -i bash_4.2-2ubuntu2.3_i386.deb