Multiple format string vulnerabilities in comm.c in Rhapsody IRC 0.28b allow remote attackers to execute arbitrary code via format string specifiers to the…

Multiple format string vulnerabilities in comm.c in Rhapsody IRC 0.28b allow remote attackers to execute arbitrary code via format string specifiers to the create_ctcp_message function using the message argument to the (1) me or (2) ctcp commands, and possibly related vectors involving the (3) whois, (4) mode, and (5) topic commands.