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[Full-disclosure] Buffer Overflow in dnsmap 0.22 - DNS Network Mapper by pagvac (gnucitizen.org)
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: [Full-disclosure] Buffer Overflow in dnsmap 0.22 - DNS Network Mapper by pagvac (gnucitizen.org)
- From: srl <security.research.labs@xxxxxxxxx>
- Date: Wed, 25 Feb 2009 17:36:46 +0200
Security Advisory:
PRODUCT
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http://www.gnucitizen.org/blog/new-version-of-dnsmap-out/
http://www.gnucitizen.org/static/blog/2009/02/dnsmap-022.tar
This this is a great tool, used by the two pentesters, pagvac and pdp
TECHNICAL DESCRIPTION
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A local buffer overflow exist in dnsmap 0.22.
$ dnsmap -r `perl -e 'print "A"x250'`
dnsmap 0.22 - DNS Network Mapper by pagvac (gnucitizen.org)
Segmentation fault
SOLUTION
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Wait until pagvac will learn about strncpy().
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