Some vulnerabilities have been reported in ZNC, which can be exploited by malicious users and malicious people to cause a DoS (Denial of Service).
The vulnerabilities are caused due to ZNC not correctly handling certain exceptions related to "substr()" calls, which can be exploited to crash ZNC by e.g. sending a "PING" command without parameters or connecting to a malicious IRC server.
The vulnerabilities are reported in version 0.092. Other versions may also be affected.
Solution: Fixed in the SVN repository.
Provided and/or discovered by: Reported within the PING handling by Sm0ke0ut. Additional information by the vendor.
Original Advisory: http://znc.svn.sourceforge.net/viewvc/znc?view=revision&revision=2093
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Subject: ZNC Denial of Service Vulnerabilities
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