Nmap gets Segmentation fault when scanning local network with service fingerprinting.

[Michał Radwański]

 The actual crash happens when NSE scan begins.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: nmap 7.01-2ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Apr 17 20:51:25 2016
InstallationDate: Installed on 2016-04-11 (6 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
SourcePackage: nmap
UpgradeStatus: No upgrade log present (probably fresh install)

[Joshua Powers (powersj)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Since there isn't enough information in your report to differentiate between a local configuration problem and a bug in Ubuntu, I'm marking this bug as Incomplete.

If indeed this is a local configuration problem, you can find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community

Or if you believe that this is really a bug, then you may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to New.

[David Anderson (davea42)]

Regrettably I don't have much additional data, but nmap has been crashing
irregularly for me. At least daily. I get a crash notification window and
clicking 'details' I see that /usr/bin/nmap is the culprit.

nmap -sV -oG /tmp/tediptmpout -p80 '192.168.x.140-200'
(obscuring the actual local ipv4 subnet with an x here)

is the specific command used.

It gets used several times a day to find a device ip on local lan
and extract data from the device.
I never saw this problem before 16.04

Today I got fed up with this and downloaded nmap source version 7.40
and built it. Installed in /usr/local/bin.

So far that is working fine, but it is too early to say it solves the problem.

[Launchpad Janitor (janitor)]

[Expired for nmap (Ubuntu) because there has been no activity for 60 days.]