FreeBSD -- link_ntoa(3) buffer overflow

Problem Description:
A specially crafted argument can trigger a static buffer
overflow in the library, with possibility to rewrite following
static buffers that belong to other library functions.
Impact:
Due to very limited use of the function in the existing
applications, and limited length of the overflow, exploitation
of the vulnerability does not seem feasible. None of the
utilities and daemons in the base system are known to be
vulnerable. However, careful review of third party software
that may use the function was not performed.