The bug has been fixed (May 21, 2013, between the releases of glibc-2.17 and glibc-2.18).
So your statement "This bug effects all versions of libc6 greater than 2.2+ (which was released Nov, 10, 2000) so you’ll be really lucky if you’re not vulnerable." is wrong.
For example, Ubuntu 14.04 uses glibc-2.19-1 which isn't affected.
Feedback welcome:
http://product.reverb.com/2015/01/28/patching-cve-2015-0235-...