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6.49BETA1 UltraProbe::icmpid() const: Assertion Error #154
Compiling the current Nmap 6.49BETA1 from the published tarball and the github repo I get the following error on Kali Linux x64:
I can avoid this error by using "-Pn", so I suppose this is related to the ICMP sweep.
Was just about to report this myself :)
The crash occurs when a destination unreachable ICMP message is received.
OS: Ubuntu 14.04 (tested on Desktop and Server)
When nmap undergoes host discovery, if a host responds with an ICMP Destination Unreachable, Nmap aborts with the following error:
This issue has been reproduced with ICMP Destination Unreachable types 13 (Communication Administratively Prohibited) and type 0 (Net Unreachable) messages. Other Destination Unreachable messages may also be affected.
Replied on nmap-dev mailing list: http://seclists.org/nmap-dev/2015/q2/220