CVE-2015-0235 glibc gethostbyname Overflow writeup (openwall.com)

Here is a gist which contains source code for testing if a system is vulnerable: https://gist.github.com/koelling/ef9b2b9d0be6d6dbab63

e.g.:

    curl https://gist.githubusercontent.com/koelling/ef9b2b9d0be6d6dbab63/raw/de1730049198c64eaf8f8ab015a3c8b23b63fd34/gistfile1.c > gistfile1.c
    gcc -o ghost-test gistfile1.c
    ./ghost-test

    not vulnerable