Fix buffer overflow during SSH_MSG_USERAUTH_BANNER (#693)
Fix buffer overflow during SSH_MSG_USERAUTH_BANNER (#693)

File: userauth.c
Notes:
This patch fixes application crashes due to heap corruption. Turns out the null terminator is written one byte outside of the allocated area.
Credit:
Zenju
libssh2/libssh2,libssh2/libssh2,libssh2/libssh2,libssh2/libssh2