FreeBSD: VID-74ded00e-6007-11e6-a6c3-14dae9d210b8 (CVE-2014-8611): FreeBSD -- Buffer overflow in stdio

Problem Description: A programming error in the standard I/O library's __sflush() function could erroneously adjust the buffered stream's internal state even when no write actually occurred in the case when write(2) system call returns an error. Impact: The accounting mismatch would accumulate, if the caller does not check for stream status and will eventually lead to a heap buffer overflow. Such overflows may lead to data corruption or the execution of arbitrary code at the privilege level of the calling program.