znc: denial of service

From the Red Hat bugzilla entry:

Multiple vulnerabilities were reported in ZNC which can be exploited by malicious authenticated users to cause a denial of service. These flaws are due to errors when handling the "editnetwork", "editchan", "addchan", and "delchan" page requests; they can be exploited to cause a NULL pointer dereference. These flaws only affect version 1.0.