irssi: Multiple vulnerabilities (CVE-2017-9468, CVE-2017-9469)
CVE-2017-9468: When receiving a DCC message without source
nick/host, Irssi would
attempt to dereference a NULL pointer.
CVE-2017-9469: When receiving certain incorrectly quoted DCC files,
try to find the terminating quote one byte before the allocated memory.
(from redmine: issue id 7393, created on 2017-06-07, closed on 2017-06-15)