Re: Is WinSPC 5.7 vulnerable to GHOST: (glibc)?
While PuTTY may use glibc (I do not know), WinSCP does not. Not even indirectly via PuTTY code.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
WinSCP does not use glibc library.