libX11: Changes to 'master'

[Matthieu Herrb]

 src/LiHosts.c |   19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

New commits:
commit d81da209fd4d0c2c9ad0596a8078e58864479d0d
Author: Tobias Stoeckmann <tobias at stoeckmann.org>
Date:   Tue Jul 3 22:31:37 2018 +0200

    Validation of server response in XListHosts.
    
    If a server sends an incorrect length in its response, a client is prone
    to perform an out of boundary read while processing the data.
    
    The length field of xHostEntry is used to specify the amount of bytes
    used to represent the address. It is 16 bit, which means that it is not
    possible to perform an arbitrary memory access, but it might be enough
    to read sensitive information, e.g. malloc-related pointers and offsets.
    
    Signed-off-by: Tobias Stoeckmann <tobias at stoeckmann.org>
    Reviewed-by: Matthieu Herrb <matthieu at herrb.eu>