libssl.so.10: cannot open shared object file: No such file or directory

Lets make sure that you have your SSL installed and updated:

sudo apt-get update
sudo apt-get install libssl1.0.0 libssl-dev

Now lets fix the naming of the file by creating a link:

cd /lib/x86_64-linux-gnu
sudo ln -s libssl.so.1.0.0 libssl.so.10
sudo ln -s libcrypto.so.1.0.0 libcrypto.so.10

And finally, lets inform the developer about this flaw so he can fix it :)

Seems that mongo is expecting libssl files in /usr/lib/:

  sudo ln -s /lib/x86_64-linux-gnu/libssl.so.1.0.0 /usr/lib/libssl.so.10
  sudo ln -s /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /usr/lib/libcrypto.so.10

I am one of the developers of these tools. Our binaries don't support Ubuntu officially (yet). The official way to fix this problem is to recompile from source, which just has gotten extremely simple (see https://github.com/NullModel/kentUtils). We are currently trying to build static binaries without the libssl dependency.