Interesting - I wonder how it got into that state?
If you Google, you'll find multiple links - for many different scenarios; most probably having nothing to do with yours.
The basic problem is that one (or more) of your runtime packages were linked with an OLDER version of GLibC (2.3.2) instead of your current version. This should *not* happen with a base install of Ubuntu.
One thing I might try is a re-install of X Windows (a likely candidate).
A bit of "hackery" that might get you going is this:
'Hope that helps .. PSM