Is glibc-2.17 in Ubuntu 13.10 GHOST vulnerable?

Based on some facts:

1. Run the famous GHOST.c and print out "not vulnerable" with 2.17-93ubuntu4 libc6.
2. The patch was in on May 21, 2013, between the release of glibc-2.17 and 2.18.
3. Tomsguide said 13.10 and later are immune.
4. A comment from Y Combinator said no.

However, Qualys said 2.17 should have a problem right?

Following the patch...

Let's get the glibc source 2.17-93ubuntu4

# apt-get source eglibc
# head debian/changelog
eglibc (2.17-93ubuntu4) saucy; urgency=low

# vi nss/digits_dots.c
matches Yea it was patched.

The preseed to disable the auto update from Ubuntu repo during ISO installation

Tried to search google and didn't find an easy answer. Therefore I needed to look at the apt-setup source, and figured out these two preseeds:

d-i apt-setup/use_mirror boolean false

d-i apt-setup/services-select-ubuntu multiselect ""

The first entry disables the main/update/multiverse etc. The second entry disables the security.