kernel: pty layer race condition leading to memory corruption

The nttywrite function in drivers/tty/ntty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service memory corruption and system crash or gain privileges by triggering a race condition...

mod_security buffer overflow

off-by-one buffer overflow during POST processing...