A denial of service flaw was reported in ZNC versions 0.200 and 0.202. A DCC RESUME received by znc can cause a crash in the bouncedcc module. This has been fixed in git .
This issue has received the name CVE-2012-0033:
Created znc tracking bugs for this issue
Affects: fedora-all [bug 773005]
Affects: epel-all [bug 773006]
znc-0.204-3.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.