Fixes CVE-2018-7225 - An issue was discovered in LibVNCServer through
0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize
msg.cct.length, leading to access to uninitialized and potentially sensitive
data or possibly unspecified other impact (e.g., an integer overflow) via
specially crafted VNC packets.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>