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DreamForge IRCd is an IRC daemon designed for the Dalnet IRC Network, and maintained by the Dalnet IRCd Team. A problem with the daemon allows users to remotely crash the daemon. The problem occurs in the dns resolution code included as part of the daemon. A buffer overflow exists in the routine that reverse-resolves an IP address. Upon the return of a 128 byte A Record to the IRCd after attempting to resolve an IP address, the daemon dies. This allows a malicious user with control of their own DNS to crash the IRC daemon, resulting in a Denial of Service to legitimate users. This vulnerability potentially impacts other IRC daemons that are derivatives of the original Dreamforge source.

DreamForge IRCd is an IRC daemon designed for the Dalnet IRC Network, and maintained by the Dalnet IRCd Team. A problem with the daemon allows users to remotely crash the daemon. The problem occurs in the dns resolution code included as part of the daemon. A buffer overflow exists in the routine that reverse-resolves an IP address. Upon the return of a 128 byte A Record to the IRCd after attempting to resolve an IP address, the daemon dies. This allows a malicious user with control of their own DNS to crash the IRC daemon, resulting in a Denial of Service to legitimate users. This vulnerability potentially impacts other IRC daemons that are derivatives of the original Dreamforge source.