176187 – Bug in the Nmap first generation OS detection engine

Bug 176187 - Bug in the Nmap first generation OS detection engine

Summary: Bug in the Nmap first generation OS detection engine

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	All Linux

Importance:	High normal (vote)
Assignee:	Michal Januszewski (RETIRED)

URL:	http://insecure.org/nmap/changelog.html
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2007-04-26 23:50 UTC by fireboot
Modified:	2007-05-06 15:18 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

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Description fireboot 2007-04-26 23:50:32 UTC

There is a important bug in the latest Nmap stable version (v 4.20) : Some debugging lines were left on the Nmap source code, which force the first generation OS detection engine ( -O and -O1 options ) to mark all hosts as potentially usable as zombie host : the bug forced TCP sequence prediction system to the value 0, so the host was always notified as "trivial joke"

This bug was fixed since Nmap v.4.21-alpha2 


Reproducible: Always

Steps to Reproduce:

Comment 1 Michal Januszewski (RETIRED) gentoo-dev

2007-05-06 15:18:25 UTC

Fixed in CVS, thanks for reporting the problem.